#66DB66 Color
#66DB66 is rgb(102, 219, 102) in RGB and hsl(120, 62%, 63%) in HSL. The closest CSS named color is MediumSeaGreen. Black text is most readable on this background.
#66DB66
HEX
#66DB66RGB
rgb(102, 219, 102)HSL
hsl(120, 62%, 63%)HSV
hsv(120, 53%, 86%)OKLCH
oklch(79.8% 0.19 143.5)CMYK
cmyk(53%, 0%, 53%, 14%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66DB66 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.77:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text11.89:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66DB66 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66DB66, useful for hover states, backgrounds, and text variants.