diff --git a/src/internal/inputs/ValidationProps.ts b/src/internal/inputs/ValidationProps.ts
index 704944c6..b59c68d4 100644
--- a/src/internal/inputs/ValidationProps.ts
+++ b/src/internal/inputs/ValidationProps.ts
@@ -23,4 +23,10 @@ export type ValidationProps = {
      * @see ValidationState
      */
     validationState?: keyof typeof ValidationState;
+    /**
+     * Provide custom message for external validation errors. Applies only to errors reported by
+     * validationState prop.
+     * @see validationState
+     */
+    errorMessage?: string;
 };
diff --git a/src/internal/inputs/index.ts b/src/internal/inputs/index.ts
index 8cde4143..d47a789c 100644
--- a/src/internal/inputs/index.ts
+++ b/src/internal/inputs/index.ts
@@ -17,4 +17,4 @@ export {
 } from './validatorMocks.ts';
 export {useHandleFormReset} from './useHandleFormReset.ts';
 export {useRevalidateOnFormChange} from './useRevalidateOnFormChange.ts';
-export {useSyncValidation} from './useSyncValidation.ts';
+export {useExternalValidation} from './useExternalValidation.ts';
diff --git a/src/internal/inputs/useSyncValidation.ts b/src/internal/inputs/useExternalValidation.ts
similarity index 58%
rename from src/internal/inputs/useSyncValidation.ts
rename to src/internal/inputs/useExternalValidation.ts
index 6602a79a..1d849d58 100644
--- a/src/internal/inputs/useSyncValidation.ts
+++ b/src/internal/inputs/useExternalValidation.ts
@@ -6,7 +6,8 @@ import {ValidationState} from '@/internal/inputs';
 export type Props = {
     validationState?: keyof typeof ValidationState;
     setValidity: Dispatch<SetStateAction<keyof typeof ValidationState | null>>;
-    inputRef: MutableRefObject<HTMLInputElement | HTMLTextAreaElement | null>;
+    inputRef: MutableRefObject<HTMLInputElement | HTMLTextAreaElement | HTMLSelectElement | null>;
+    errorMessage?: string;
 };
 
 /**
@@ -15,14 +16,22 @@ export type Props = {
  * NB! On change validation takes preference.
  * @see ValidationState
  */
-export const useSyncValidation = ({validationState, inputRef, setValidity}: Props) => {
+export const useExternalValidation = ({
+    validationState,
+    inputRef,
+    setValidity,
+    errorMessage = ValidationState.error,
+}: Props) => {
     useEffect(() => {
+        // Empty string is considered to be positive validation result for HTMLInputElement.setCustomValidity
+        const normalizedErrorMessage = errorMessage ? errorMessage : ValidationState.error;
         if (validationState === ValidationState.error && inputRef.current) {
-            inputRef.current.setCustomValidity(ValidationState.error);
+            console.log('ValidationState.error', validationState, inputRef.current);
+            inputRef.current.setCustomValidity(normalizedErrorMessage);
             setValidity(ValidationState.error);
         } else if (validationState && inputRef.current) {
             inputRef.current.setCustomValidity('');
             setValidity(validationState);
         }
-    }, [inputRef, setValidity, validationState]);
+    }, [errorMessage, inputRef, setValidity, validationState]);
 };
diff --git a/src/lib/InputCheckbox/InputCheckbox.tsx b/src/lib/InputCheckbox/InputCheckbox.tsx
index fb8710b4..48a0b2b0 100644
--- a/src/lib/InputCheckbox/InputCheckbox.tsx
+++ b/src/lib/InputCheckbox/InputCheckbox.tsx
@@ -8,7 +8,7 @@ import {
     defaultValidator,
     useValidation,
     useRevalidateOnFormChange,
-    useSyncValidation,
+    useExternalValidation,
 } from '@/internal/inputs';
 import type {
     NativePropsInteractive,
@@ -49,6 +49,7 @@ export const InputCheckbox = forwardRef<HTMLInputElement, Props>(
             required,
             revalidateOnFormChange,
             validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -59,7 +60,7 @@ export const InputCheckbox = forwardRef<HTMLInputElement, Props>(
         const inputRef = useInternalRef(ref);
         useRevalidateOnFormChange(inputRef, validateInteractive, revalidateOnFormChange);
 
-        useSyncValidation({inputRef, setValidity, validationState});
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
diff --git a/src/lib/InputColor/InputColor.tsx b/src/lib/InputColor/InputColor.tsx
index ae4bd6b6..7a82f619 100644
--- a/src/lib/InputColor/InputColor.tsx
+++ b/src/lib/InputColor/InputColor.tsx
@@ -11,8 +11,13 @@ import type {
     ValidationProps,
     NativePropsInteractive,
 } from '@/internal/inputs';
-import {ValidationState} from '@/internal/inputs';
-import {useSyncValidation, useValidation, defaultValidator} from '@/internal/inputs';
+import {useRevalidateOnFormChange} from '@/internal/inputs';
+import {
+    ValidationState,
+    useExternalValidation,
+    useValidation,
+    defaultValidator,
+} from '@/internal/inputs';
 import {useInternalId} from '@/internal/hooks/useInternalId.ts';
 import {useInternalRef} from '@/internal/hooks/useInternalRef.ts';
 
@@ -23,7 +28,7 @@ export type Props = DataAttributes &
     LibraryProps &
     NativePropsInteractive &
     CallbackPropsTextual &
-    Omit<ValidationProps, 'validatorFn'> & {
+    ValidationProps & {
         /**
          * Set text for placeholder.
          * @see https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#placeholder
@@ -52,17 +57,22 @@ export const InputColor = forwardRef<HTMLInputElement, Props>(
             id: idProp,
             predefinedColors = [],
             validationState,
+            errorMessage,
+            revalidateOnFormChange,
+            validatorFn = defaultValidator,
             ...nativeProps
         },
         ref
     ) => {
-        const {validity, setValidity} = useValidation({
-            validatorFn: defaultValidator,
+        const {validity, setValidity, validateTextual} = useValidation({
+            validatorFn,
         });
         const id = useInternalId(idProp);
 
         const inputRef = useInternalRef(ref);
-        useSyncValidation({inputRef, setValidity, validationState});
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
+
+        useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
diff --git a/src/lib/InputDate/InputDate.tsx b/src/lib/InputDate/InputDate.tsx
index eb114fd7..903d6f4e 100644
--- a/src/lib/InputDate/InputDate.tsx
+++ b/src/lib/InputDate/InputDate.tsx
@@ -6,9 +6,13 @@ import classNames from 'classnames';
 import {IconError, IconValid, IconLoader, IconCalendar} from '@/internal/Icons';
 import type {DataAttributes, LibraryProps} from '@/internal/LibraryAPI';
 import type {NativePropsTextual, CallbackPropsTextual, ValidationProps} from '@/internal/inputs';
-import {useRevalidateOnFormChange} from '@/internal/inputs';
-import {defaultValidator} from '@/internal/inputs';
-import {ValidationState, useValidation} from '@/internal/inputs';
+import {
+    useRevalidateOnFormChange,
+    useExternalValidation,
+    defaultValidator,
+    ValidationState,
+    useValidation,
+} from '@/internal/inputs';
 import {useInternalId} from '@/internal/hooks/useInternalId.ts';
 import {useInternalRef} from '@/internal/hooks/useInternalRef.ts';
 
@@ -36,6 +40,8 @@ export const InputDate = forwardRef<HTMLInputElement, Props>(
             defaultValue,
             validatorFn = defaultValidator,
             revalidateOnFormChange,
+            validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -44,15 +50,18 @@ export const InputDate = forwardRef<HTMLInputElement, Props>(
         const labelRef = useRef<HTMLLabelElement>(null);
 
         const {validateTextual, validity, setValidity} = useValidation({validatorFn});
+
+        const inputRef = useInternalRef(ref);
+
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
+        useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
+
         const ValidationIcon = {
             [ValidationState.error]: IconError,
             [ValidationState.valid]: IconValid,
             [ValidationState.inProgress]: IconLoader,
         }[validity!];
 
-        const inputRef = useInternalRef(ref);
-        useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
-
         const displayValue = (value ?? defaultValue) as string;
         const handleChange = useCallback(
             (event: ChangeEvent<HTMLInputElement>) => {
@@ -95,7 +104,7 @@ export const InputDate = forwardRef<HTMLInputElement, Props>(
                     <input
                         {...nativeProps}
                         id={id}
-                        ref={ref}
+                        ref={inputRef}
                         className={classes.input}
                         type="date"
                         disabled={disabled}
diff --git a/src/lib/InputFile/InputFile.tsx b/src/lib/InputFile/InputFile.tsx
index 298dedbb..1addff3b 100644
--- a/src/lib/InputFile/InputFile.tsx
+++ b/src/lib/InputFile/InputFile.tsx
@@ -7,15 +7,23 @@ import {useLocalTheme} from 'css-vars-hook';
 
 import {IconError, IconValid, IconLoader, IconFile} from '@/internal/Icons';
 import type {DataAttributes, LibraryProps} from '@/internal/LibraryAPI';
-import type {NativePropsTextual, CallbackPropsTextual} from '@/internal/inputs';
-import {ValidationState, defaultValidator, useValidation} from '@/internal/inputs';
+import type {NativePropsTextual, CallbackPropsTextual, ValidationProps} from '@/internal/inputs';
+import {
+    useRevalidateOnFormChange,
+    useExternalValidation,
+    defaultValidator,
+    ValidationState,
+    useValidation,
+} from '@/internal/inputs';
 import {useInternalId} from '@/internal/hooks/useInternalId.ts';
+import {useInternalRef} from '@/internal/hooks/useInternalRef.ts';
 
 import classes from './InputFile.module.css';
 
 export type Props = DataAttributes &
     LibraryProps &
     Omit<NativePropsTextual, 'inputMode' | 'maxLength' | 'minLength' | 'pattern' | 'readOnly'> &
+    ValidationProps &
     CallbackPropsTextual & {
         accept?: InputHTMLAttributes<HTMLInputElement>['accept'];
         multiple?: InputHTMLAttributes<HTMLInputElement>['multiple'];
@@ -36,6 +44,10 @@ export const InputFile = forwardRef<HTMLInputElement, Props>(
             onKeyUp = () => {},
             defaultValue,
             size = 16,
+            validationState,
+            errorMessage,
+            revalidateOnFormChange,
+            validatorFn = defaultValidator,
             ...nativeProps
         },
         ref
@@ -51,8 +63,12 @@ export const InputFile = forwardRef<HTMLInputElement, Props>(
         const id = useInternalId(idProp);
         const [filename, setFileName] = useState('');
         const {validateTextual, validity, setValidity} = useValidation({
-            validatorFn: defaultValidator,
+            validatorFn,
         });
+        const inputRef = useInternalRef(ref);
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
+        useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
+
         const ValidationIcon = {
             [ValidationState.error]: IconError,
             [ValidationState.valid]: IconValid,
@@ -79,7 +95,7 @@ export const InputFile = forwardRef<HTMLInputElement, Props>(
                         type="file"
                         placeholder={placeholder}
                         className={classes.input}
-                        ref={ref}
+                        ref={inputRef}
                         disabled={disabled}
                         value={value}
                         defaultValue={defaultValue}
diff --git a/src/lib/InputNumber/InputNumber.tsx b/src/lib/InputNumber/InputNumber.tsx
index 07ef0fa1..8a657db7 100644
--- a/src/lib/InputNumber/InputNumber.tsx
+++ b/src/lib/InputNumber/InputNumber.tsx
@@ -7,8 +7,13 @@ import {useLocalTheme} from 'css-vars-hook';
 import {IconError, IconValid, IconLoader, IconArrowUp, IconArrowDown} from '@/internal/Icons';
 import type {DataAttributes, LibraryProps} from '@/internal/LibraryAPI';
 import type {NativePropsNumeric, CallbackPropsTextual, ValidationProps} from '@/internal/inputs';
-import {useRevalidateOnFormChange} from '@/internal/inputs';
-import {ValidationState, defaultValidator, useValidation} from '@/internal/inputs';
+import {
+    ValidationState,
+    defaultValidator,
+    useValidation,
+    useExternalValidation,
+    useRevalidateOnFormChange,
+} from '@/internal/inputs';
 import {useInternalRef} from '@/internal/hooks/useInternalRef.ts';
 
 import classes from './InputNumber.module.css';
@@ -43,6 +48,8 @@ export const InputNumber = forwardRef<HTMLInputElement, Props>(
             size = 10,
             step = 1,
             revalidateOnFormChange,
+            validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -51,6 +58,7 @@ export const InputNumber = forwardRef<HTMLInputElement, Props>(
 
         const inputRef = useInternalRef(ref);
         useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
diff --git a/src/lib/InputPassword/InputPassword.tsx b/src/lib/InputPassword/InputPassword.tsx
index 714ed3fe..cc0de10c 100644
--- a/src/lib/InputPassword/InputPassword.tsx
+++ b/src/lib/InputPassword/InputPassword.tsx
@@ -7,8 +7,13 @@ import classNames from 'classnames';
 import {IconError, IconValid, IconLoader, IconLock, IconLockOpen} from '@/internal/Icons';
 import type {DataAttributes, LibraryProps} from '@/internal/LibraryAPI';
 import type {NativePropsTextual, CallbackPropsTextual, ValidationProps} from '@/internal/inputs';
-import {useRevalidateOnFormChange} from '@/internal/inputs';
-import {ValidationState, defaultValidator, useValidation} from '@/internal/inputs';
+import {
+    ValidationState,
+    defaultValidator,
+    useValidation,
+    useRevalidateOnFormChange,
+    useExternalValidation,
+} from '@/internal/inputs';
 import {useInternalId} from '@/internal/hooks/useInternalId.ts';
 import {useInternalRef} from '@/internal/hooks/useInternalRef.ts';
 
@@ -43,6 +48,8 @@ export const InputPassword = forwardRef<HTMLInputElement, Props>(
             readOnly,
             size = 16,
             revalidateOnFormChange,
+            validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -51,6 +58,7 @@ export const InputPassword = forwardRef<HTMLInputElement, Props>(
 
         const inputRef = useInternalRef(ref);
         useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
@@ -109,7 +117,7 @@ export const InputPassword = forwardRef<HTMLInputElement, Props>(
                     readOnly={readOnly}
                     placeholder={placeholder}
                     className={classes.input}
-                    ref={ref}
+                    ref={inputRef}
                     disabled={disabled}
                     type={type}
                     value={value}
diff --git a/src/lib/InputRange/InputRange.tsx b/src/lib/InputRange/InputRange.tsx
index 226ab40c..88697462 100644
--- a/src/lib/InputRange/InputRange.tsx
+++ b/src/lib/InputRange/InputRange.tsx
@@ -7,6 +7,7 @@ import {useLocalTheme} from 'css-vars-hook';
 import {IconError, IconValid, IconLoader} from '@/internal/Icons';
 import type {DataAttributes, LibraryProps} from '@/internal/LibraryAPI';
 import type {NativePropsNumeric, CallbackPropsTextual, ValidationProps} from '@/internal/inputs';
+import {useExternalValidation} from '@/internal/inputs';
 import {useRevalidateOnFormChange} from '@/internal/inputs';
 import {ValidationState, defaultValidator, useValidation} from '@/internal/inputs';
 import {useControllableState} from '@/internal/hooks/useControllableState.ts';
@@ -71,6 +72,8 @@ export const InputRange = forwardRef<HTMLInputElement, Props>(
             bars = 5,
             scaleUnit = '',
             revalidateOnFormChange,
+            validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -79,6 +82,7 @@ export const InputRange = forwardRef<HTMLInputElement, Props>(
 
         const inputRef = useInternalRef(ref);
         useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
@@ -128,7 +132,7 @@ export const InputRange = forwardRef<HTMLInputElement, Props>(
                         id={inputId}
                         type="range"
                         className={classes.input}
-                        ref={ref}
+                        ref={inputRef}
                         disabled={disabled}
                         value={value}
                         defaultValue={defaultValue}
diff --git a/src/lib/InputText/InputText.tsx b/src/lib/InputText/InputText.tsx
index 89c4889c..80e66eaa 100644
--- a/src/lib/InputText/InputText.tsx
+++ b/src/lib/InputText/InputText.tsx
@@ -11,7 +11,7 @@ import {
     defaultValidator,
     useValidation,
     useRevalidateOnFormChange,
-    useSyncValidation,
+    useExternalValidation,
 } from '@/internal/inputs';
 import {useInternalId} from '@/internal/hooks/useInternalId.ts';
 import {useInternalRef} from '@/internal/hooks/useInternalRef.ts';
@@ -62,6 +62,7 @@ export const InputText = forwardRef<HTMLInputElement, Props>(
             required,
             revalidateOnFormChange,
             validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -71,7 +72,7 @@ export const InputText = forwardRef<HTMLInputElement, Props>(
         const inputRef = useInternalRef(ref);
         useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
 
-        useSyncValidation({inputRef, setValidity, validationState});
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
diff --git a/src/lib/InputTime/InputTime.tsx b/src/lib/InputTime/InputTime.tsx
index 42fb42fd..97bed25c 100644
--- a/src/lib/InputTime/InputTime.tsx
+++ b/src/lib/InputTime/InputTime.tsx
@@ -5,6 +5,7 @@ import classNames from 'classnames';
 import {IconError, IconValid, IconLoader, IconClock} from '@/internal/Icons';
 import type {DataAttributes, LibraryProps} from '@/internal/LibraryAPI';
 import type {NativePropsTextual, CallbackPropsTextual, ValidationProps} from '@/internal/inputs';
+import {useExternalValidation} from '@/internal/inputs';
 import {useRevalidateOnFormChange} from '@/internal/inputs';
 import {ValidationState, defaultValidator, useValidation} from '@/internal/inputs';
 import {useInternalRef} from '@/internal/hooks/useInternalRef.ts';
@@ -36,6 +37,8 @@ export const InputTime = forwardRef<HTMLInputElement, Props>(
             defaultValue,
             validatorFn = defaultValidator,
             revalidateOnFormChange,
+            validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -44,6 +47,7 @@ export const InputTime = forwardRef<HTMLInputElement, Props>(
         const {validity, setValidity, validateTextual} = useValidation({validatorFn});
 
         useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
diff --git a/src/lib/Select/Select.tsx b/src/lib/Select/Select.tsx
index ce4c59d9..001cb338 100644
--- a/src/lib/Select/Select.tsx
+++ b/src/lib/Select/Select.tsx
@@ -10,6 +10,7 @@ import type {
     CallbackPropsTextual,
     ValidationProps,
 } from '@/internal/inputs';
+import {useExternalValidation} from '@/internal/inputs';
 import {useRevalidateOnFormChange} from '@/internal/inputs';
 import {ValidationState, defaultValidator, useValidation} from '@/internal/inputs';
 import {useInternalId} from '@/internal/hooks/useInternalId.ts';
@@ -54,6 +55,8 @@ export const Select = forwardRef<HTMLSelectElement, Props>(
             children,
             size = 16,
             revalidateOnFormChange,
+            validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -70,6 +73,7 @@ export const Select = forwardRef<HTMLSelectElement, Props>(
 
         const inputRef = useInternalRef(ref);
         useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
diff --git a/src/lib/Textarea/Textarea.tsx b/src/lib/Textarea/Textarea.tsx
index bf87021f..948c061a 100644
--- a/src/lib/Textarea/Textarea.tsx
+++ b/src/lib/Textarea/Textarea.tsx
@@ -6,6 +6,7 @@ import {useLocalTheme} from 'css-vars-hook';
 import {IconError, IconValid, IconLoader} from '@/internal/Icons';
 import type {DataAttributes, LibraryProps} from '@/internal/LibraryAPI';
 import type {NativePropsTextual, CallbackPropsTextual, ValidationProps} from '@/internal/inputs';
+import {useExternalValidation} from '@/internal/inputs';
 import {useRevalidateOnFormChange} from '@/internal/inputs';
 import {ValidationState, defaultValidator, useValidation} from '@/internal/inputs';
 import {useInternalId} from '@/internal/hooks/useInternalId.ts';
@@ -67,6 +68,8 @@ export const Textarea = forwardRef<HTMLTextAreaElement, Props>(
             rows = 3,
             resize = 'both',
             revalidateOnFormChange,
+            validationState,
+            errorMessage,
             ...nativeProps
         },
         ref
@@ -75,6 +78,10 @@ export const Textarea = forwardRef<HTMLTextAreaElement, Props>(
 
         const inputRef = useInternalRef(ref);
         useRevalidateOnFormChange(inputRef, validateTextual, revalidateOnFormChange);
+        useExternalValidation({inputRef, setValidity, validationState, errorMessage});
+
+        console.log('validity', validity);
+        console.log('validationState', validationState);
 
         const ValidationIcon = {
             [ValidationState.error]: IconError,
@@ -132,7 +139,7 @@ export const Textarea = forwardRef<HTMLTextAreaElement, Props>(
                     id={textareaId}
                     placeholder={placeholder}
                     className={classes.textarea}
-                    ref={ref}
+                    ref={inputRef}
                     disabled={disabled}
                     value={value}
                     defaultValue={defaultValue}