#51C51B Color
#51C51B is rgb(81, 197, 27) in RGB and hsl(101, 76%, 44%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#51C51B
HEX
#51C51BRGB
rgb(81, 197, 27)HSL
hsl(101, 76%, 44%)HSV
hsv(101, 86%, 77%)OKLCH
oklch(72.8% 0.219 138.7)CMYK
cmyk(59%, 0%, 86%, 23%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51C51B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.25:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9.35:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51C51B based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51C51B, useful for hover states, backgrounds, and text variants.