#66E228 Color
#66E228 is rgb(102, 226, 40) in RGB and hsl(100, 76%, 52%) in HSL. The closest CSS named color is LawnGreen. Black text is most readable on this background.
#66E228
HEX
#66E228RGB
rgb(102, 226, 40)HSL
hsl(100, 76%, 52%)HSV
hsv(100, 82%, 89%)OKLCH
oklch(81% 0.237 138.1)CMYK
cmyk(55%, 0%, 82%, 11%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66E228 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.68:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text12.47:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66E228 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66E228, useful for hover states, backgrounds, and text variants.