Precision Color Harmonies for Modern UI Design
Move beyond paint-palette tools. Drag the interactive wheel to calculate mathematically balanced harmonies, audit WCAG 2.1 contrast ratios, and export clean Tailwind CSS & OKLCH tokens.
Drag the handle around the wheel or use sliders below
Generated Harmonies (3 Colors)
Primary Base
#2463EBoklch(0.546 0.215 262.7)
Secondary
#EB2463oklch(0.613 0.228 10.4)
Accent
#63EB24oklch(0.831 0.250 138.7)
Live UI Component Preview
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Team Dashboard
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Interactive Button & State Styles
Verify clickability, state contrasts, and visual weight across primary and secondary controls.
WCAG 2.1 Contrast Matrix
Evaluates minimum contrast ratios for regular body text (4.5:1 AA, 7:1 AAA) and large text (3:1).
| Color Role | Hex | On Pure White (#FFF) | On Dark Obsidian (#0B0F19) | Recommended Usage |
|---|---|---|---|---|
Primary Base | #2463EB | 5.17:1(AA) | 3.70:1(AA (large text)) | Best on Light UI / Backgrounds |
Secondary | #EB2463 | 4.23:1(AA (large text)) | 4.53:1(AA) | Best on Dark UI / Buttons |
Accent | #63EB24 | 1.56:1(Fail) | 12.26:1(AAA) | Best on Dark UI / Buttons |
50–950 Tailwind Shade Ramp
Click any swatch to copy its HEX value. Formatted for Tailwind CSS v4 / v3 color configurations.
Ready-to-Use Code Snippets
// tailwind.config.js / CSS @theme
module.exports = {
theme: {
extend: {
colors: {
primary: {
50: '#F5F6FA',
100: '#E7EBF3',
200: '#B4CAF8',
300: '#86A9F4',
400: '#4E81EF',
500: '#2463EB',
600: '#124BC4',
700: '#0F3C9F',
800: '#0B2C75',
900: '#021C55',
950: '#011132',
},
secondary: '#EB2463',
accent: '#63EB24',
}
}
}
};Why UI Designers & Engineers Choose UI Wheel
Traditional color tools leave you guessing how colors look in code. UI Wheel gives you immediate certainty.
Instant WCAG Audits
No more opening separate contrast checker tabs. Ratios against white and obsidian dark surfaces update on every wheel drag.
Live SaaS Sandbox
See your primary, secondary, and accent harmonies instantly painted onto realistic buttons, cards, and KPI metrics.
OKLCH & Tailwind Ready
One-click exports for Tailwind CSS v4, CSS variables, and modern perceptually uniform OKLCH strings.
Zero Server Latency
Zero telemetry bloat. All geometric and color calculations run locally in the browser with 60fps smoothness.
Explore Top UI Color Wheels
Aesthetic
#9D8DF1Dreamy, Pinterest-inspired palette featuring Y2K pastels, cottagecore greens, and warm 70s vintage tones.
Soft Autumn
#B86B53Muted, warm earth-toned palette from 12-season color analysis — featuring terracotta, olive, and warm taupe.
Deep Winter
#1E3A8AHigh-contrast, jewel-toned palette from 12-season analysis — featuring obsidian navy, icy cobalt, and cool ruby.
Soft Summer
#9B8EB9Cool, desaturated smoky pastel palette — featuring dusty lavender, slate denim, and sea mist sage.
Warm Spring
#F59E0BRadiant, golden-infused high-clarity palette — featuring sunflower gold, coral peach, and warm turquoise.
Pastel
#A7C7E7Soft, high-luminance tones for serene branding, wellness apps, and gentle aesthetic interfaces.
Color Harmony Formulas
Complementary Harmony
2 ColorsMaximum optical contrast for commanding call-to-actions, alerts, and hero conversions.
Triadic Harmony
3 ColorsVibrant, playful equilibrium delivering distinct functional roles across complex applications.
Split-Complementary Harmony
3 ColorsSophisticated contrast with reduced visual tension — the designer's safest high-contrast formula.
Analogous Harmony
3 ColorsSerene, organic unity perfect for smooth gradients, calm workflows, and unified branding.
Tetradic (Square) Harmony
4 ColorsRich, multi-faceted versatility for data-heavy platforms and multi-tenant architectures.
Monochromatic Harmony
4 ColorsTimeless, minimalist elegance allowing typography and content to take center stage.
Frequently Asked Questions
What is the difference between a graphic color wheel and a UI color wheel?
Graphic color wheels focus primarily on pigment mixing (RYB) or general print aesthetics. A UI color wheel specifically analyzes digital RGB/OKLCH color coordinates, evaluates digital contrast compliance (WCAG 2.1), and maps harmonies to functional user interface roles (Backgrounds, Borders, Cards, and Call-to-Action buttons).
Why should I use OKLCH instead of HSL or Hex?
Standard HSL has uneven perceptual lightness: pure yellow at 50% lightness looks blindingly bright, while pure blue at 50% lightness looks dark. OKLCH is perceptually uniform, meaning two colors with the same lightness value will actually look equally bright to the human eye, making it ideal for accessible design systems.
Can I export these color schemes directly to Tailwind CSS?
Yes. UI Wheel automatically generates ready-to-copy code snippets formatted for Tailwind CSS (both v4 @theme and v3 tailwind.config.js), CSS custom properties, and JSON tokens.