A serious color workspace for serious digital products.
HueCanva was built to solve a pervasive problem in modern digital design: traditional color generators rely on legacy RGB color spaces that lead to muddy palettes, unpredictable contrast shifts, and tedious manual token translation.
Engineered with Perceptual OKLCH Mathematics
By modeling human vision using the cylindrical OKLCH color space, HueCanva guarantees uniform lightness across hues. When you adjust lightness or harmony angles, the perceived visual weight remains constant. This means your UI elements never suffer from unintentional contrast loss or muddy, desaturated tones.
The Four Pillars of HueCanva
Zero Latency, 100% Client-Side
All color mathematics, harmonic calculations, and image color extractions run directly in your browser using HTML5 Canvas and Web Workers. No images or session data are ever transmitted to remote servers.
Developer-First Output
Instantly export clean, production-ready code. From Tailwind CSS v4 @theme blocks to CSS custom variables, SCSS tokens, and design tokens JSON formats.
Accessibility by Default
Integrated WCAG 2.2 AA and AAA contrast checking lets you test readability in real-time. Includes an 8-mode color vision deficiency simulator so your interfaces are accessible to everyone.
Sub-50ms Global Edge Delivery
Deployed on Cloudflare Workers edge runtime across 300+ worldwide locations. Instant page loads, zero bloated client bundles, and smooth 60fps animations.
Explore the Color Tool Suite
Everything you need for end-to-end color workflow in one cohesive, ad-free platform:
Palette Generator
→Harmonic color palettes generated with lockable swatches and OKLCH curves.
UI Visualizer
→Preview palettes on realistic websites, dashboards, cards, and typography.
Contrast Checker
→WCAG 2.2 AA and AAA validation for foreground and background pairings.
Image to Palette
→Extract dominant colors and vibrant palettes client-side from any photo.
Gradient Generator
→Build linear, radial, and conic CSS gradients with precision color stops.
Tailwind Color Scale
→Generate complete 50 to 950 color steps formatted for Tailwind CSS v4 and v3.
Color Blindness Simulator
→Inspect interfaces against 8 distinct forms of color vision deficiency.
Shades & Tints
→Build smooth monotonic light-to-dark tonal ranges from any anchor hue.
Design Token Studio
→Export DTCG tokens, CSS variables, and JSON token structures.
Start creating beautiful, accessible palettes today.
No accounts, no paywalls, no tracking. Just launch the generator and start building.