PlanetToolbox
Color Code Converter
Convert hex, RGB, RGBA, HSL, and HSLA color codes to common web color formats with contrast checks.
Hex
#336699
RGB
rgb(51, 102, 153)
HSL
hsl(210, 50%, 40%)
Text color
white
Color input
Convert color codes
Color conversion summary
- Hex
- #336699
- Hex alpha
- #336699FF
- RGB
- rgb(51, 102, 153)
- RGBA
- rgba(51, 102, 153, 1)
- HSL
- hsl(210, 50%, 40%)
- HSLA
- hsla(210, 50%, 40%, 1)
- HSV
- hsv(210, 66.67%, 60%)
- CMYK
- cmyk(66.67%, 33.33%, 0%, 40%)
- Contrast on white
- 6:1
- Contrast on black
- 3.5:1
Notes
Supported inputAccepts #RGB, #RGBA, #RRGGBB, #RRGGBBAA, rgb(), rgba(), hsl(), and hsla().
ContrastContrast ratios use WCAG relative luminance against pure white and pure black.
Color converter notes
The converter normalizes common CSS color formats and reports contrast against black and white text so colors can be checked quickly during interface work.