#66D553 Color

#66D553 is rgb(102, 213, 83) in RGB and hsl(111, 61%, 58%) in HSL. The closest CSS named color is MediumSeaGreen. Black text is most readable on this background.

#66D553

HEX#66D553

RGBrgb(102, 213, 83)

HSLhsl(111, 61%, 58%)

HSVhsv(111, 61%, 84%)

OKLCHoklch(78% 0.198 140.9)

CMYKcmyk(52%, 0%, 61%, 16%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #66D553 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 text11.21:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #66D553 based on color wheel relationships. Click any swatch for its full breakdown.

Base#66D553 Complementary#C253D5 Analogous#A7D553 Analogous#53D580 Triadic#5366D5 Triadic#D55366

Tints & Shades

Lighter tints and darker shades of #66D553, useful for hover states, backgrounds, and text variants.

Tints

#7CDB6B #8EE080 #A4E698 #BAECB1 #D0F2CA #E2F7DE

Shades

#49CD32 #3FB12B #339023 #276F1B #1C4E13 #12310C

Use #66D553 in Our Tools

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