Developer Color Tools
Every tool is 100% free, client-side, and designed to streamline color decisions between design mockups and production frontends.
Interactive UI Color Wheel
360-degree interactive SVG color wheel calculating triadic, complementary, split-complementary, and analogous harmonies in real time.
Color Wheel Spinner & Palette Roulette
Spin the animated 360° roulette wheel for randomized palettes, mechanical audio ticks, confetti celebrations, and Daily UI Challenges.
12-Season Color Analysis Hub
Comparative matrix for Soft Autumn, Deep Winter, Soft Summer, and Warm Spring palettes with optical dimensions and UI rules.
Color Wheels Library
Curated programmatic color wheels for top web design colors like Aesthetic, Pastel, Lavender, Emerald Green, and Soft Autumn.
Color Harmony Calculators
Deep-dive guides and dedicated calculators for all 6 major color harmonies. Learn exact geometric angle offsets and UI best practices.
Tailwind 50–950 Shade Generator
Automatically generate a full 11-step Tailwind CSS color scale from 50 to 950 for any base hex code with 1-click copy.
WCAG 2.1 Contrast Matrix
Audit color contrast ratios against pure white and dark obsidian backgrounds with instant AAA, AA, and Large Text pass/fail ratings.
OKLCH Modern CSS Converter
Convert standard Hex and RGB values into perceptually uniform OKLCH color strings for high-dynamic-range CSS stylesheets.
Color Blindness Simulator Studio
Simulate Deuteranopia, Protanopia, Tritanopia, and Achromatopsia live across UI buttons and palettes with automated confusion warnings.
Color Tool Capability Matrix
Compare inputs, outputs, and primary workflows across the UI Wheel tool suite:
| Tool Name | Primary Workflow | Supported Output Formats | Execution Speed |
|---|---|---|---|
| Interactive UI Color Wheel | Harmonizing primary, secondary, & accent spokes | Tailwind, CSS Variables, OKLCH, JSON | 60 FPS Drag |
| Color Blindness Simulator | Testing Deuteranopia, Protanopia, Tritanopia & Achromatopsia | Simulated Hex, WCAG Ratios & Confusion Warnings | Instant |
| Color Wheel Spinner | Creative ideation & daily UI design challenges | HEX, CSS Tokens, HSL | Instant Click |
| Tailwind 50–950 Shade Generator | Generating 11-step complete UI component scales | Tailwind v4 @theme & v3 config | Real-time |
| WCAG 2.1 Contrast Matrix | W3C AA & AAA compliance auditing | Contrast ratios & pass/fail badges | Continuous |
| OKLCH Color Wheel | Perceptually uniform wide-gamut palettes | Modern CSS Color Module 4 | Instant |
Frontend Color Tools FAQ
Why use dedicated frontend color utilities instead of graphic design suites?
Tools like Photoshop and Illustrator are optimized for print ink mixing and raster pixels. Frontend color utilities like UI Wheel compute real-world CSS design tokens, test dynamic dark mode surfaces, and enforce W3C WCAG accessibility standards directly in code.
Are all generated scales compatible with Tailwind CSS v4?
Yes. All export buttons provide options for modern Tailwind CSS v4 `@theme` directives as well as legacy `tailwind.config.js` objects for Tailwind v3.
Can I use these tools offline?
Because all calculations execute client-side via JavaScript, once the pages are cached in your browser, the math and SVG wheel engines run without requiring server round-trips.