#51B8B5 Color
#51B8B5 is rgb(81, 184, 181) in RGB and hsl(178, 42%, 52%) in HSL. The closest CSS named color is MediumAquamarine. Black text is most readable on this background.
#51B8B5
HEX
#51B8B5RGB
rgb(81, 184, 181)HSL
hsl(178, 42%, 52%)HSV
hsv(178, 56%, 72%)OKLCH
oklch(72.2% 0.095 192.6)CMYK
cmyk(56%, 0%, 2%, 28%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #51B8B5 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.37:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text8.87:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #51B8B5 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #51B8B5, useful for hover states, backgrounds, and text variants.