#66E58C Color
#66E58C is rgb(102, 229, 140) in RGB and hsl(138, 71%, 65%) in HSL. The closest CSS named color is MediumAquamarine. Black text is most readable on this background.
#66E58C
HEX
#66E58CRGB
rgb(102, 229, 140)HSL
hsl(138, 71%, 65%)HSV
hsv(138, 55%, 90%)OKLCH
oklch(82.8% 0.169 150.9)CMYK
cmyk(55%, 0%, 39%, 10%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66E58C background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.6:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text13.15:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66E58C based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66E58C, useful for hover states, backgrounds, and text variants.