Color tools that stay out of your way.
ChromaWell's interface is deliberately neutral — near-white, near-black, refined gray — so the color you're working with is never distorted by a colored UI. Convert, generate, and check color with tools built for developers and designers who judge design for a living. Paste a hex or RGB value below and get every conversion, contrast pairing, and nearest named color at once, or jump straight to a specific converter, checker, or generator from the tool grid.
How ChromaWell works
There's no account, no server round-trip, and no upsell gate between you and a working color tool. Every converter, generator, and checker on this site runs entirely in your browser using a single shared color-math library — type or paste a value, and the conversions, harmonies, contrast ratios, and nearest named colors update immediately. Reference pages (the 1,094 named colors, the curated theme palettes, the color-meaning pages) are pre-built at publish time from the same library, so a static page and a live tool never disagree about what a given hex value actually converts to. If you already know which tool you need, the grid below jumps straight there; if you're starting from a color rather than a task, the input above and the named-color and palette references are usually the faster route in.
Tools
Why a neutral interface?
Most color tools wrap your palette in a colorful, opinionated UI — cards tinted lilac, buttons in mint, hero gradients competing with the very colors you're trying to judge. ChromaWell does the opposite: the chrome stays a disciplined near-white/near-black gray scale, with the only brand flourish confined to the logomark's prism gradient. What you see when you check a contrast ratio or preview a palette is the actual color, rendered true — a tinted card background would quietly shift how a swatch reads next to it, which is exactly the kind of distortion a working color tool can't afford.
The accuracy moat
Every conversion, contrast ratio, and color-blindness simulation on this site runs through a shared, unit-tested color-core library — round-trip and known-value tests across hex, RGB, HSL, HSV, CMYK, Lab, and OKLCH, WCAG luminance math verified against documented reference pairs, Machado-Oliveira-Fernandes dichromacy matrices for the color-blindness simulator, and CIE76 Delta-E nearest-name lookups across all 1,094 named colors. See methodology for the full test suite, dataset sources, and licenses.
Most searched
Most useful pages
A shortcut past the full tool and reference index — the individual pages people land on most, from the everyday converters to a sample of the named-color, meaning, combination, and palette references.
- Hex, RGB, HSL, HSV, CMYK, Lab & OKLCH converter
- WCAG AA/AAA contrast checker
- Color-blindness simulator
- Palette generator
- Gradient generator
- Nearest named-color finder
- Blue shades & tints hub
- The meaning of blue
- Colors that go with navy
- Sunset gradient theme palette
- Color & design blog
- Dataset sources & methodology
FAQ
Is ChromaWell free?
Yes — every tool, every named-color and palette reference page, and every color-meaning page is free with no account required. A paid Pro Palette Pack is available separately for designers who want a hand-curated set of palettes and gradients pre-exported to Figma, Sketch, ASE, and CSS variable formats, and a small donation helps cover hosting if the free tools save you time.
Does anything run on a server?
No. Every conversion and calculation runs in your browser (or at build time for reference pages) — nothing you type into a converter, picker, or generator is sent anywhere.
Where do the named colors come from?
The 148 CSS/X11 named colors come from the CSS Color Module Level 4 specification, and the remaining 946 come from the xkcd color-name survey, a public, CC0-licensed dataset of names people actually use for colors. Full sourcing and license details are on the methodology page.
How accurate are the conversions?
Every conversion path (hex, RGB, HSL, HSV, CMYK, Lab, and OKLCH) and the WCAG contrast-ratio math are covered by a unit-tested suite that checks both round-trip conversions and known reference values, so a conversion isn't just visually plausible — it's tested against documented formulas.
What's the difference between a named color and a palette?
A named color is a single, specific hex value with a name — Tomato, Cloudy Blue, whatever the CSS spec or the xkcd survey calls it — and gets its own conversion and contrast reference page. A theme palette is a hand-curated set of three to six colors meant to be used together (Sunset Gradient, Ocean Breeze, Forest Canopy), built to match a real intent rather than generated by hue rotation alone.
1094 named colors (148 CSS/X11 + 946 xkcd), 16 tools, 120 curated theme palettes, and 24 color-meaning pages — every count above is read directly from this site's own build manifest, not hardcoded, so it stays accurate as the dataset grows.