#66D558 Color

#66D558 is rgb(102, 213, 88) in RGB and hsl(113, 60%, 59%) in HSL. The closest CSS named color is MediumSeaGreen. Black text is most readable on this background.

#66D558

HEX#66D558

RGBrgb(102, 213, 88)

HSLhsl(113, 60%, 59%)

HSVhsv(113, 59%, 84%)

OKLCHoklch(78.1% 0.194 141.5)

CMYKcmyk(52%, 0%, 59%, 16%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #66D558 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.87:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text11.22:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #66D558 based on color wheel relationships. Click any swatch for its full breakdown.

Base#66D558 Complementary#C758D5 Analogous#A5D558 Analogous#58D588 Triadic#5866D5 Triadic#D55866

Tints & Shades

Lighter tints and darker shades of #66D558, useful for hover states, backgrounds, and text variants.

Tints

#7DDB70 #8FE085 #A6E79D #B8ECB1 #CFF2CA #E1F7DE

Shades

#49CD37 #3BAF2C #308F24 #27721D #1C5214 #11310C

Use #66D558 in Our Tools

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