#66E178 Color
#66E178 is rgb(102, 225, 120) in RGB and hsl(129, 67%, 64%) in HSL. The closest CSS named color is LightGreen. Black text is most readable on this background.
#66E178
HEX
#66E178RGB
rgb(102, 225, 120)HSL
hsl(129, 67%, 64%)HSV
hsv(129, 55%, 88%)OKLCH
oklch(81.5% 0.182 146.6)CMYK
cmyk(55%, 0%, 47%, 12%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66E178 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.67:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text12.61:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66E178 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66E178, useful for hover states, backgrounds, and text variants.