#F31B1B Color
#F31B1B is rgb(243, 27, 27) in RGB and hsl(0, 90%, 53%) in HSL. The closest CSS named color is Red. Black text is most readable on this background.
#F31B1B
HEX
#F31B1BRGB
rgb(243, 27, 27)HSL
hsl(0, 90%, 53%)HSV
hsv(0, 89%, 95%)OKLCH
oklch(61.3% 0.241 28.3)CMYK
cmyk(0%, 89%, 89%, 5%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #F31B1B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text4.21:1AA normal ✗AA large ✓AAA normal ✗
TextBlack text4.98:1AA normal ✓AA large ✓AAA normal ✗
Color Harmonies
Colors that pair well with #F31B1B based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #F31B1B, useful for hover states, backgrounds, and text variants.