#66D345 Color
#66D345 is rgb(102, 211, 69) in RGB and hsl(106, 62%, 55%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#66D345
HEX
#66D345RGB
rgb(102, 211, 69)HSL
hsl(106, 62%, 55%)HSV
hsv(106, 67%, 83%)OKLCH
oklch(77.4% 0.205 139.3)CMYK
cmyk(52%, 0%, 67%, 17%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66D345 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.91:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text10.97:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66D345 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66D345, useful for hover states, backgrounds, and text variants.