#66CC66 Color
#66CC66 is rgb(102, 204, 102) in RGB and hsl(120, 50%, 60%) in HSL. The closest CSS named color is MediumSeaGreen. Black text is most readable on this background.
#66CC66
HEX
#66CC66RGB
rgb(102, 204, 102)HSL
hsl(120, 50%, 60%)HSV
hsv(120, 50%, 80%)OKLCH
oklch(76% 0.17 143.7)CMYK
cmyk(50%, 0%, 50%, 20%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66CC66 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.02:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text10.39:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66CC66 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66CC66, useful for hover states, backgrounds, and text variants.