#B10B21 Color
#B10B21 is rgb(177, 11, 33) in RGB and hsl(352, 88%, 37%) in HSL. The closest CSS named color is FireBrick. White text is most readable on this background.
#B10B21
HEX
#B10B21RGB
rgb(177, 11, 33)HSL
hsl(352, 88%, 37%)HSV
hsv(352, 94%, 69%)OKLCH
oklch(48.3% 0.19 24.1)CMYK
cmyk(0%, 94%, 81%, 31%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #B10B21 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text7.14:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text2.94:1AA normal ✗AA large ✗AAA normal ✗
Color Harmonies
Colors that pair well with #B10B21 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #B10B21, useful for hover states, backgrounds, and text variants.