Whether you're a developer copying a CSS value, a designer checking accessibility, or a hobbyist exploring palettes, I7 Pixel's color converter gives you every format instantly — live in your browser, with no upload and no signup.
Converting a color takes just four steps.
Knowing which format to use and when helps you ship better designs and more accessible interfaces.
HEX is a compact 6-character representation of an RGB color in base-16. #6366F1 is the same as rgb(99, 102, 241) — the R, G, and B channels are just written as hex pairs. HEX is standard in HTML and CSS. RGB is more readable when you need to understand the individual channel values or compute blends programmatically.
HSL (Hue, Saturation, Lightness) and HSV (Hue, Saturation, Value/Brightness) describe color in terms humans think in. Adjusting Lightness in HSL shifts a color from black to white through its pure hue. In HSV, Value controls brightness — at 0% you get black, at 100% you get the full color. HSL is recommended for CSS since it maps directly to the hsl() function. HSV is what most design tools (Photoshop, Figma) use in their color pickers.
CMYK (Cyan, Magenta, Yellow, Black) is the subtractive color model used in print. Unlike RGB (additive, for screens), CMYK starts with white paper and adds ink. If you're handing off a brand color to a print designer, always convert to CMYK. Note that not every RGB color has an exact CMYK equivalent — the gamuts differ, so some screen colors appear slightly different in print.
Quick reference for choosing the right format for your use case.
| Format | Example | Best Used For |
|---|---|---|
| HEX Popular | #6366F1 | CSS, HTML, design tools — compact and universally supported |
| RGB | rgb(99, 102, 241) | CSS, JavaScript color manipulation, canvas APIs |
| HSL Popular | hsl(239, 84%, 67%) | CSS theming, dynamic color adjustments, accessible palettes |
| HSV / HSB | hsv(239, 59%, 95%) | Design tool inputs (Figma, Photoshop, Sketch color pickers) |
| CMYK | cmyk(59%, 58%, 0%, 5%) | Print design, brand guidelines, InDesign and Illustrator |
Color format conversion is a daily task across design, development, and print workflows.
Answers to the most common questions about the color converter.
Yes — completely free. There are no limits, no accounts, no watermarks, and no charges. Convert as many colors as you need.
The converter supports HEX, RGB, HSL, HSV/HSB, and CMYK. All five formats are generated simultaneously from a single HEX input.
No — never. All conversions run entirely in your browser using JavaScript. Nothing is transmitted, logged, or stored anywhere outside your device.
The contrast checker calculates the ratio between your color and a background. It shows whether the pair passes WCAG AA (≥4.5:1 normal text) or AAA (≥7:1 normal text) accessibility standards.
The eyedropper uses the browser's EyeDropper API to let you pick any pixel color from your screen. It is supported in Chrome and Edge 95+. Click the eyedropper icon and then click any color on screen.
The shade generator produces 9 tints and shades at lightness values from 10% to 90% using HSL math. Click any shade chip to load it as the active color and convert it.
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All tools at I7 Pixel run in your browser — no uploads, no accounts, always free.