#66CE40 Color
#66CE40 is rgb(102, 206, 64) in RGB and hsl(104, 59%, 53%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#66CE40
HEX
#66CE40RGB
rgb(102, 206, 64)HSL
hsl(104, 59%, 53%)HSV
hsv(104, 69%, 81%)OKLCH
oklch(76.1% 0.202 138.6)CMYK
cmyk(50%, 0%, 69%, 19%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66CE40 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.01:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text10.47:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66CE40 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66CE40, useful for hover states, backgrounds, and text variants.