#66D178 Color

#66D178 is rgb(102, 209, 120) in RGB and hsl(130, 54%, 61%) in HSL. The closest CSS named color is MediumAquamarine. Black text is most readable on this background.

#66D178

HEX#66D178

RGBrgb(102, 209, 120)

HSLhsl(130, 54%, 61%)

HSVhsv(130, 51%, 82%)

OKLCHoklch(77.6% 0.16 147.4)

CMYKcmyk(51%, 0%, 43%, 18%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #66D178 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.92:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text10.96:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #66D178 based on color wheel relationships. Click any swatch for its full breakdown.

Base#66D178 Complementary#D166BF Analogous#8AD166 Analogous#66D1AD Triadic#7866D1 Triadic#D17866

Tints & Shades

Lighter tints and darker shades of #66D178, useful for hover states, backgrounds, and text variants.

Tints

#79D789 #91DE9E #A5E4AF #B8EAC1 #CCF0D2 #E4F7E7

Shades

#46C85C #35B149 #2B913C #216E2E #174F21 #0E2F14

Use #66D178 in Our Tools

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