Why Do Color Names Matter?
In web design and development, identifying a color by its HEX or RGB value isn't always intuitive.
Instead of parsing "#3b82f6", it's much easier for human teams to communicate about "Royal Blue" or "Azure".
Our tool uses advanced OKLCH-based perceptual mapping to find the closest CSS named color to whatever HEX code you provide.
What is WCAG Contrast?
Web Content Accessibility Guidelines (WCAG) dictate how much contrast text needs against its background to be readable by users with low vision. Normally, you need a contrast ratio of at least 4.5:1 for normal text and 3.0:1 for large text to pass the AA accessibility level. When a color is entered, we instantly tell you if it's safe to use as text over white or black backgrounds!
Frequently Asked Questions
Very accurate! Instead of simple RGB math, we convert colors to the OKLCH color space. This perceptual space models human vision, so the "closest" color name we determine is mathematically aligned with how you actually see the color's hue, lightness, and intensity.
When you input a base primary color, we create an 11-step scale (from 50 to 950) typical of design systems like TailwindCSS. We use OKLCH interpolation to keep the vibrancy consistent across tints (light shades) and shades (dark variants) without causing colors to look "muddy."