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OKLCH Color Converter & Picker

Convert between perceptually uniform OKLCH, HEX, RGB, HSL, and Display P3 with live sRGB gamut check.

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🎨OKLCH Color Converter & Picker Documentation & Guide

CSS & Design
Convert between modern CSS Color Module Level 4 OKLCH and HEX, RGB, HSL, and Display P3 wide-gamut formats. Explore perceptually uniform color adjustments with live sRGB gamut boundary checking.

📋How to Convert & Pick OKLCH Colors

  1. 1. Adjust Lightness, Chroma & Hue: Use the precision sliders to dial in Lightness (L: 0-100%), Chroma (C: 0-0.4), Hue angle (H: 0-360°), and Alpha transparency.
  2. 2. Or Import Existing HEX: Type or paste an existing HEX code to instantly calculate its exact OKLCH coordinates and perceptually uniform profile.
  3. 3. Inspect & Copy CSS Declarations: View real-time sRGB gamut compatibility badges and copy modern CSS Color 4 declarations with fallbacks.

⚙️Why OKLCH Outperforms HSL & sRGB

OKLCH is based on the Oklab color space developed by Björn Ottosson. It delivers true perceptual uniformity, solving the inconsistent perceived brightness of classic HSL and RGB.

• Perceptual Uniformity: In HSL, pure yellow (hue 60°) appears dramatically brighter than pure blue (hue 240°) at 50% lightness. In OKLCH, 70% lightness has identical perceived luminance across all hues.
• Wide Gamut Display P3 Access: OKLCH unlocks ultra-vivid cyans, limes, and magentas available on modern OLED and Apple Retina displays beyond traditional sRGB limits.
• Linear Chroma Scaling: Chroma directly measures saturation without skewing perceived brightness, making automated theme and contrast generation predictable.
• Native CSS Color 4 Support: Supported natively in all modern evergreen browsers (Chrome 111+, Safari 15.4+, Firefox 113+, Edge 111+).

Enables designers and engineers to create accessible WCAG 2.2 color ramps and dynamic dark/light design token systems.

💡Practical Use Cases

  • Accessible Design Systems: Generate consistent contrast ratios across entire UI color palettes without manual luminance calibration.
  • Dynamic Theme Palettes: Shift hue angles while keeping lightness constant for uniform, harmonious multi-brand color themes.
  • Wide-Gamut P3 Graphics: Craft ultra-vivid buttons and gradient accents for high-end mobile devices and OLED screens.
100% Client-Side Privacy Guarantee:All mathematical color conversions run 100% locally in your browser. Zero telemetry or network requests.
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