diff --git a/pygrt/C_extension/include/common/colorstr.h b/pygrt/C_extension/include/common/colorstr.h
index d83b28d6..986365a2 100644
--- a/pygrt/C_extension/include/common/colorstr.h
+++ b/pygrt/C_extension/include/common/colorstr.h
@@ -15,5 +15,11 @@
 #define BOLD_RED         "\033[1;31m"
 #define REGULAR_GREEN    "\033[0;32m"
 #define BOLD_GREEN       "\033[1;32m"
-#define REGULAR_BLUE     "\033[0;35m"
-#define BOLD_BLUE        "\033[1;35m"
\ No newline at end of file
+#define REGULAR_YELLOW   "\033[0;33m"
+#define BOLD_YELLOW      "\033[1;33m"
+#define REGULAR_BLUE     "\033[0;34m"
+#define BOLD_BLUE        "\033[1;34m"
+#define REGULAR_MAGENTA  "\033[0;35m"
+#define BOLD_MAGENTA     "\033[1;35m"
+#define REGULAR_CYAN     "\033[0;36m"
+#define BOLD_CYAN        "\033[1;36m"
\ No newline at end of file