#51EC91 Color
#51EC91 is rgb(81, 236, 145) in RGB and hsl(145, 80%, 62%) in HSL. The closest CSS named color is MediumAquamarine. Black text is most readable on this background.
#51EC91
HEX
#51EC91RGB
rgb(81, 236, 145)HSL
hsl(145, 80%, 62%)HSV
hsv(145, 66%, 93%)OKLCH
oklch(84% 0.182 153.6)CMYK
cmyk(66%, 0%, 39%, 7%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51EC91 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.53:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text13.76:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51EC91 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51EC91, useful for hover states, backgrounds, and text variants.