Free Color Tools Online
A fast, free collection of color utilities for designers and developers. Pick colors, generate palettes, check contrast, and build gradients — all in your browser.
Color Picker
Pick any color and get instant hex, RGB, and HSL values. Click to copy. Large visual preview with fine-tuned controls.
Open tool →Hex to RGB Converter
Convert hex color codes to RGB and HSL, or go the other way. Supports batch conversion for multiple colors at once.
Open tool →Color Palette Generator
Generate harmonious color palettes: complementary, analogous, triadic, and split-complementary. Export as CSS, Tailwind, or plain text.
Open tool →Contrast Checker
Check WCAG 2.1 contrast ratios between foreground and background colors. See AA/AAA pass or fail results and get accessible alternatives.
Open tool →CSS Gradient Generator
Build beautiful linear and radial CSS gradients with a visual editor. Add multiple color stops, adjust angles, and copy the CSS.
Open tool →Why Use ColorTools?
ColorTools is a free, fast, and privacy-friendly collection of color utilities that runs entirely in your browser. No data is sent to any server, no accounts are required, and everything works instantly.
Built for Designers and Developers
Whether you are building a website, designing a UI, or creating digital art, having the right color tools at your fingertips makes the process faster and more enjoyable. Our tools output values in all the formats you need: hex, RGB, HSL, CSS custom properties, and Tailwind configuration.
Accessibility Matters
Our contrast checker helps you meet WCAG 2.1 guidelines so your designs are accessible to everyone. Check both AA and AAA compliance levels for normal and large text, and get suggestions for accessible color alternatives when your current combination does not pass.
No Signup, No Tracking
All tools run client-side in your browser. We do not collect personal data or require you to create an account. Just open the tool you need and start working.