#66D237 Color
#66D237 is rgb(102, 210, 55) in RGB and hsl(102, 63%, 52%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#66D237
HEX
#66D237RGB
rgb(102, 210, 55)HSL
hsl(102, 63%, 52%)HSV
hsv(102, 74%, 82%)OKLCH
oklch(77% 0.213 138.1)CMYK
cmyk(51%, 0%, 74%, 18%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66D237 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.94:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text10.84:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66D237 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66D237, useful for hover states, backgrounds, and text variants.