Color Format Converter

Convert colors between HEX, RGB, HSL, HSV, and CMYK formats with live preview and CSS-ready output.

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Color Information

Luminance: -
Contrast with white: -
Contrast with black: -
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How to Use Color Format Converter

  1. Use the color picker or enter a color value
  2. See conversions in all formats
  3. Copy any format value
  4. View color information like luminance and contrast
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About Color Format Converter

Different applications require different color formats—web design uses HEX and RGB, print needs CMYK, and color manipulation often uses HSL. Our Color Converter translates between all major color spaces with visual preview.

Color Spaces Explained

  • HEX: Web standard #RRGGBB hexadecimal format
  • RGB: Red, Green, Blue additive color model for screens
  • HSL: Hue, Saturation, Lightness—intuitive for human perception
  • HSV/HSB: Hue, Saturation, Value/Brightness—used in color pickers
  • CMYK: Cyan, Magenta, Yellow, Key (black)—for print production

Choosing the Right Format

Web developers typically work in HEX or RGB. HSL makes it easy to create color variations—adjust lightness for tints and shades while keeping hue. CMYK is essential for print because screens and printers use different color models. Our converter shows all formats at once.

Color Accuracy

RGB to CMYK conversion is approximate because these color spaces don't perfectly overlap—some screen colors can't be printed. Our converter provides practical approximations while noting these limitations for print-critical work.

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Frequently Asked Questions

What color formats can I convert between?
We support: HEX (#FF5733), RGB (255, 87, 51), RGBA with alpha, HSL (hue, saturation, lightness), HSLA with alpha, HSV/HSB (hue, saturation, value/brightness), CMYK (cyan, magenta, yellow, black) for print, and color names. Enter any format and get instant conversion to all others.
What is the difference between RGB and CMYK?
RGB is additive (light-based) for screens - combining red, green, blue light. CMYK is subtractive (ink-based) for printing - cyan, magenta, yellow inks absorb light. Colors may look different between screen (RGB) and print (CMYK). Our converter includes both, but note that not all RGB colors are achievable in CMYK.
What is HSL and why use it?
HSL (Hue, Saturation, Lightness) describes colors more intuitively than RGB. Hue is the color (0-360° on color wheel), Saturation is intensity (0-100%), Lightness is brightness (0-100%). This makes it easy to create variations: same hue with different saturation/lightness creates cohesive palettes.
What is color gamut and why do conversions sometimes look different?
Gamut is the range of colors a system can represent. RGB/monitors have a wider gamut than CMYK/print. Some vibrant screen colors cannot be exactly reproduced in print - they get shifted to the nearest printable color. Our converter warns when colors fall outside CMYK gamut.
How do I convert colors with transparency?
Use RGBA or HSLA formats which include an alpha channel (0-1 or 0-100%). Alpha 1 is fully opaque, 0 is fully transparent. In HEX, transparency can be added as 8 digits (#FF573380). Note that CMYK doesn't support transparency since print ink is always opaque.
Can I convert color names to codes?
Yes! Enter CSS color names (red, coral, steelblue, etc.) and get the exact HEX/RGB values. We support all 147 CSS named colors plus extended names. Color names are convenient but limited - for precise colors, use numeric formats. We show the closest named color for any value you enter.