#81C51B Color
#81C51B is rgb(129, 197, 27) in RGB and hsl(84, 76%, 44%) in HSL. The closest CSS named color is YellowGreen. Black text is most readable on this background.
#81C51B
HEX
#81C51BRGB
rgb(129, 197, 27)HSL
hsl(84, 76%, 44%)HSV
hsv(84, 86%, 77%)OKLCH
oklch(74.9% 0.197 130.6)CMYK
cmyk(35%, 0%, 86%, 23%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #81C51B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.11:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9.94:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #81C51B based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #81C51B, useful for hover states, backgrounds, and text variants.