#66D666 Color
#66D666 is rgb(102, 214, 102) in RGB and hsl(120, 58%, 62%) in HSL. The closest CSS named color is MediumSeaGreen. Black text is most readable on this background.
#66D666
HEX
#66D666RGB
rgb(102, 214, 102)HSL
hsl(120, 58%, 62%)HSV
hsv(120, 52%, 84%)OKLCH
oklch(78.5% 0.183 143.6)CMYK
cmyk(52%, 0%, 52%, 16%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66D666 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.85:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text11.38:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66D666 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66D666, useful for hover states, backgrounds, and text variants.