HexTo is a modern, browser-based color workflow tool designed for developers, designers, and accessibility-conscious teams who work with color every day. It offers a powerful, unified set of features including format conversion, color contrast checking, harmony generation, palette creation, visual simulation, and design token export โ all wrapped in a clean, fast, mobile-friendly interface.
With HexTo, you can instantly convert any color input (HEX, RGB, HSL, CMYK, HSB, and named CSS colors) and see all matching formats side-by-side. The real-time contrast checker uses WCAG 2.1 standards to evaluate accessibility between any two colors and shows visual pass/fail previews for both light and dark mode โ helping you create interfaces that are inclusive and readable for everyone.
HexTo goes beyond basic color tools with its advanced color harmony generator, which calculates monochromatic, complementary, analogous, triadic, tetradic, and split-color schemes from any base color. These schemes are presented as interactive swatches that you can copy, export, or use in real-time.
One of HexToโs standout features is the color vision simulator, which shows how your designs appear to users with different types of color blindness (including protanopia, deuteranopia, tritanopia, and more). This enables better design decisions for accessibility and inclusivity.
You can also create and manage color palettes, export them as PNG swatches or JSON files, and define design tokens with custom names โ making HexTo ideal for building design systems or handing off assets to developers.
There are no paywalls, no logins, and no setup. HexTo is fast, responsive, privacy-friendly, and works instantly in any modern browser. Whether youโre building a brand, designing a theme, checking accessibility, or refining a product UI โ HexTo brings together everything you need to work confidently with color.
Color Converter
Converter between HEX, RGB, HSL, HSB, CMYK,
Harmonies Generator
Generate harmonies: monochromatic, complementary, triadic, tetradic, analogous, split.
Color Token
Generate Color tokens
Vision Simulator
Simulate Color blindness types
Contrast Checker
Test and check the colorโs contrast against black, white, and other chosen color
Palette Generator
Generate, save, export palettes
Front end web development: HTML, CSS, JS. AI code assistant: ChatGPT, Google GEMINI.
Hexto is for web developers and designers
Single page website (fast loading) Tabs instead of pages (seamless Color management)
Free, No login, multiple features in one page web app
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