Enter a color in any format — HEX, RGB, or HSL — and instantly get all conversions: HEX, RGB, RGBA, HSL, HSLA, and CMYK.
Detected format: —
Could not parse that color. Try HEX (#ff5733), RGB (rgb(255,87,51)), or HSL (hsl(14,100%,60%)).
Why Convert Between Color Formats?
Different tools and contexts require different color formats. CSS supports HEX, RGB, and HSL natively. Graphic design software often works with CMYK for print output. JavaScript colour manipulation is easiest with RGB values. Having all formats at your fingertips eliminates manual calculation errors and speeds up your workflow when moving between design tools, code editors, and print preparation.
Supported Color Formats Explained
HEX is a compact six-character representation prefixed with a hash symbol, widely used in CSS. RGB and RGBA specify red, green, and blue channels from 0 to 255, with RGBA adding an alpha channel for transparency. HSL and HSLA describe colors by hue (0-360 degrees), saturation (0-100%), and lightness (0-100%), making it intuitive to create colour variations. CMYK represents the four ink plates used in colour printing: Cyan, Magenta, Yellow, and Key (black).
How the Auto-Detection Works
Enter your colour in any standard format and the converter automatically identifies whether it is HEX, RGB, or HSL. HEX values are detected by the hash prefix and hexadecimal characters. RGB and HSL are detected by their function syntax. Once the input format is identified, the tool converts to all other formats using precise mathematical formulas, ensuring accuracy across every conversion.
You can enter colors in HEX format (#FF5733 or #F53), RGB format (rgb(255, 87, 51)), or HSL format (hsl(14, 100%, 60%)). The tool automatically detects which format you are using and converts to all six output formats.
How accurate is the CMYK conversion?
The CMYK conversion uses the standard mathematical formula for converting from RGB color space. While this provides a good approximation, true CMYK values for professional printing depend on the specific ICC color profile of your printer. For critical print work, use dedicated color management software.
What is the alpha channel in RGBA and HSLA?
The alpha channel controls transparency, ranging from 0 (fully transparent) to 1 (fully opaque). RGBA and HSLA include this fourth value. When converting from formats without alpha (HEX, RGB, HSL), the alpha is set to 1 (fully opaque) by default.
Can I convert CMYK values to other formats?
Currently the tool accepts HEX, RGB, and HSL as input formats and converts to all formats including CMYK. For CMYK-to-RGB conversion, you can use the formula: R = 255 x (1-C) x (1-K), G = 255 x (1-M) x (1-K), B = 255 x (1-Y) x (1-K).
Why do HSL values appear rounded?
HSL values are rounded to whole numbers for readability and practical use. The rounding introduces negligible differences (less than 1% deviation) that are imperceptible to the human eye. If you need full precision, use HEX or RGB values which represent exact color values without rounding.