Why do RGB → CMYK → RGB conversions sometimes not round-trip perfectly?

CMYK is a subtractive color model with a smaller gamut than RGB. The mathematical conversion loses precision because CMYK can’t represent all RGB colors. Rounding to integer percentages adds further drift. This is normal and matches how every color converter works.

Does this support CSS named colors or 3-digit hex?

No. Enter full 6-digit hex codes (#3B82F6), not shorthand (#38F) or named colors (\"blue\"). The parser uses a strict 6-digit hex regex.

Color Code Converter

About Color Code Converter

Converts colors between five formats: HEX, RGB, HSL, HSV, and CMYK. Enter a value in any format and get instant conversions to all others with a live color preview. Includes a random color generator for quick exploration.

Bidirectional conversion between HEX, RGB, HSL, HSV, and CMYK
All conversions happen client-side through direct mathematical formulas—no API calls
RGB values clamped to 0–255; HSL/HSV hue 0–360, saturation/lightness/value 0–100%; CMYK 0–100%
Live color preview swatch updates as you type
One-click copy for each output format
Random color generator produces valid 6-digit hex codes

Frequently Asked Questions

Why do RGB → CMYK → RGB conversions sometimes not round-trip perfectly?: CMYK is a subtractive color model with a smaller gamut than RGB. The mathematical conversion loses precision because CMYK can’t represent all RGB colors. Rounding to integer percentages adds further drift. This is normal and matches how every color converter works.
Does this support CSS named colors or 3-digit hex?: No. Enter full 6-digit hex codes (#3B82F6), not shorthand (#38F) or named colors (\"blue\"). The parser uses a strict 6-digit hex regex.

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