Which HEX lengths are supported?

3-digit #RGB, 4-digit #RGBA, 6-digit #RRGGBB, and 8-digit #RRGGBBAA. Other lengths are rejected. 3- and 4-digit values expand by doubling each nibble.

Is CMYK a print-accurate conversion?

No. CMYK here is a simple sRGB subtractive approximation. It is not an ICC or printer-managed workflow. Do not use it for press-ready separations.

Are CSS names supported?

Yes. The 148 CSS Color Module Level 4 named colors resolve to their specified sRGB hex values.

Convert

Color Converter

Paste a hex code, CSS name, or channel values and get the other notations at once. Pair queries such as hex to RGB live here instead of on thin extra pages.

Input is processed in your browser. ColorToolMage does not upload it, store it, or send it to analytics.

HEX or CSS name

RGB

RGBA

HSL

HSV / HSB

HSV

CMYK (sRGB approximation)

CMYK

#336699

Result

HEX
#336699
RGB
rgb(51, 102, 153)
HSL
hsl(210, 50%, 40%)
HSV
hsv(210, 66.7%, 60%)
CMYK (approx.)
cmyk(66.7%, 33.3%, 0%, 40%)
CSS name
no exact named-color match
Alpha
1

How it works

All fields share one sRGB color. HEX, RGB, HSL, and HSV are lossless within rounding. CMYK is labeled as an approximation. Alpha is a unit interval; 8-digit HEX stores it as 00–FF.

Input and output

Input is a hex string, CSS name, or channel numbers. Output is HEX, rgb()/hsl()/hsv() text, approximate CMYK, and an optional CSS name when the hex matches exactly.

Common uses

Brand hex

#336699 becomes rgb(51, 102, 153) and hsl(210, 50%, 40%).

Named color

rebeccapurple becomes #663399.

How to use this tool

Paste a hex code or CSS color name, or edit RGB, HSL, HSV, or CMYK fields.
Review the live swatch and the other notations.
Copy the format you need. Reset returns the example color.

Limitations

sRGB only. Not Display P3, OKLCH, or Lab.
CMYK is not color-managed.
Rounding uses documented nearest-value rules; 0.5 RGB channels round with Math.round.

Questions

Which HEX lengths are supported?: 3-digit #RGB, 4-digit #RGBA, 6-digit #RRGGBB, and 8-digit #RRGGBBAA. Other lengths are rejected. 3- and 4-digit values expand by doubling each nibble.
Is CMYK a print-accurate conversion?: No. CMYK here is a simple sRGB subtractive approximation. It is not an ICC or printer-managed workflow. Do not use it for press-ready separations.
Are CSS names supported?: Yes. The 148 CSS Color Module Level 4 named colors resolve to their specified sRGB hex values.

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