#51B215 Color
#51B215 is rgb(81, 178, 21) in RGB and hsl(97, 79%, 39%) in HSL. The closest CSS named color is OliveDrab. Black text is most readable on this background.
#51B215
HEX
#51B215RGB
rgb(81, 178, 21)HSL
hsl(97, 79%, 39%)HSV
hsv(97, 88%, 70%)OKLCH
oklch(67.8% 0.2 137.4)CMYK
cmyk(54%, 0%, 88%, 30%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51B215 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.72:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text7.73:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51B215 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51B215, useful for hover states, backgrounds, and text variants.