#66B361 Color
#66B361 is rgb(102, 179, 97) in RGB and hsl(116, 35%, 54%) in HSL. The closest CSS named color is MediumSeaGreen. Black text is most readable on this background.
#66B361
HEX
#66B361RGB
rgb(102, 179, 97)HSL
hsl(116, 35%, 54%)HSV
hsv(116, 46%, 70%)OKLCH
oklch(69.7% 0.139 142.7)CMYK
cmyk(43%, 0%, 46%, 30%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66B361 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.57:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text8.19:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66B361 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66B361, useful for hover states, backgrounds, and text variants.