#66AD58 Color
#66AD58 is rgb(102, 173, 88) in RGB and hsl(110, 34%, 51%) in HSL. The closest CSS named color is MediumSeaGreen. Black text is most readable on this background.
#66AD58
HEX
#66AD58RGB
rgb(102, 173, 88)HSL
hsl(110, 34%, 51%)HSV
hsv(110, 49%, 68%)OKLCH
oklch(68.1% 0.139 140.4)CMYK
cmyk(41%, 0%, 49%, 32%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66AD58 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.73:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text7.68:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66AD58 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66AD58, useful for hover states, backgrounds, and text variants.