This colour mixing calculator converts colours between RGB, HEX, HSL, and CMYK, and helps you blend or match colours across those systems. It is handy for design, finishing, screen-to-print work, and anywhere you need the same colour expressed in different ways.
Colour models and conversion
Different jobs use different colour models. RGB and HEX describe light on screens by mixing red, green, and blue. HSL expresses a colour as hue, saturation, and lightness, which is intuitive for adjusting a colour by eye. CMYK describes ink on paper for printing. The calculator converts a colour between all of these so you can take a value from one context and use it accurately in another.
Converting is not always loss-free: the range of colours (the gamut) differs between screens and print, so a vivid RGB colour may not reproduce exactly in CMYK. The calculator gives the closest equivalent, which is the right starting point for a match you then confirm against a real sample.
Mixing and matching
HSL makes deliberate adjustments easy — nudge the hue to shift the colour, drop the saturation to mute it, or change lightness for a tint or shade. When matching a target colour, converting it to HEX or RGB gives an exact reference, and working in HSL lets you build tints and shades that stay in the same family.
You have the HEX colour #336699 and need its RGB values.
- Split the hex into pairs: 33, 66, 99.
- Convert each from hexadecimal to decimal: 33→51, 66→102, 99→153.
- RGB = (51, 102, 153).
#336699 is RGB(51, 102, 153) — a muted slate blue.
