#51FB51 Color
#51FB51 is rgb(81, 251, 81) in RGB and hsl(120, 96%, 65%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#51FB51
HEX
#51FB51RGB
rgb(81, 251, 81)HSL
hsl(120, 96%, 65%)HSV
hsv(120, 68%, 98%)OKLCH
oklch(86.9% 0.252 143)CMYK
cmyk(68%, 0%, 68%, 2%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51FB51 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.38:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text15.27:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51FB51 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51FB51, useful for hover states, backgrounds, and text variants.