#51D728 Color
#51D728 is rgb(81, 215, 40) in RGB and hsl(106, 69%, 50%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#51D728
HEX
#51D728RGB
rgb(81, 215, 40)HSL
hsl(106, 69%, 50%)HSV
hsv(106, 81%, 84%)OKLCH
oklch(77.5% 0.234 139.9)CMYK
cmyk(62%, 0%, 81%, 16%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51D728 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.89:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text11.1:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51D728 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51D728, useful for hover states, backgrounds, and text variants.