#66C639 Color

#66C639 is rgb(102, 198, 57) in RGB and hsl(101, 55%, 50%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.

#66C639

HEX#66C639

RGBrgb(102, 198, 57)

HSLhsl(101, 55%, 50%)

HSVhsv(101, 71%, 78%)

OKLCHoklch(74% 0.197 137.6)

CMYKcmyk(48%, 0%, 71%, 22%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #66C639 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text2.16:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text9.7:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #66C639 based on color wheel relationships. Click any swatch for its full breakdown.

Base#66C639 Complementary#9939C6 Analogous#ACC639 Analogous#39C653 Triadic#3966C6 Triadic#C63966

Tints & Shades

Lighter tints and darker shades of #66C639, useful for hover states, backgrounds, and text variants.

Tints

#7BCE55 #91D671 #A6DE8C #B9E5A4 #CEEDC0 #E3F5DB

Shades

#58AA31 #4B922A #3D7722 #315F1C #234314 #162B0D

Use #66C639 in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex