React Chameleon

React-chameleon is a HOC. With react-chameleon you can parse image colors and apply them how you want.

Install:

npm i react-chameleon

Use:

import React from 'react';
import ReactDOM from 'react-dom';
import Chameleon from 'react-chameleon';

const Text = props => {
    const {
        content,
        reactChameleonColors = []
    } = props;
    const defaultColors = {
        back: { r: 255, g: 255, b: 255, alpha: 1 },
        front: { r: 0, g: 0, b: 0, alpha: 1 }
    };
    const [
        backColor = defaultColors.back,
        frontColor = defaultColors.front
    ] = reactChameleonColors;
    const getColor = c => `rgba(${c.r},${c.g},${c.b},${c.alpha})`;

    return <p
        style={{
            backgroundColor: getColor(backColor),
            color: getColor(frontColor)
        }}>{content}</p>;
};

const ChameleonText = Chameleon(Text);

ReactDOM.render(
    <ChameleonText
        img={'./path/to/image'}
        content={'React Chameleon Demo'}
    />,
    document.body
);

Props:

Name	Type	Required	Default	Description
img	String	Yes	null	Path to image. For example, './my/image/path.png'.
colorsCacheLimit	Number	No	100	In order not to do the same thing several times (image analysis), we cache the resulting colors for the images. Enter the number of entries in the cache here. The uniqueness of the set is determined by the settings.
adaptFrontColorsToBack	Boolean	No	false	Adapt the colors to the background color. The background color will be the first color after sorting, the other colors will adapt to it.
sortType	String	No	'count'	What color characteristic will be used for sorting. Allowed values: "count", "alpha".
sortDir	String	No	'desc'	Sorting direction. Allowed values: "desc", "asc".
colorsCount	Number	No	undefined	The number of colors used. It is necessary to specify to optimize the process of adapting colors to the background color.
colorDifference	Number	No	120	The minimum allowed difference in colors. For example, if we compare colors: rgb(0, 0, 0) and rgb(255, 255, 255), then "color_difference" of them is 765. Math.abs(0 - 255 + 0 - 255 + 0 - 255) = 765.
minColorAlpha	Number	No	0	The minimum acceptable alpha-channel level of color. All colors whose level will be lower will be ignored.
colorAlphaPrecision	Number	No	100	Precision of alpha-chanel value. For example, with a default value of 100, the precision will be 0.01.

Demo:

For more information and examples check the demo page.