#66C549 Color
#66C549 is rgb(102, 197, 73) in RGB and hsl(106, 52%, 53%) in HSL. The closest CSS named color is LimeGreen. Black text is most readable on this background.
#66C549
HEX
#66C549RGB
rgb(102, 197, 73)HSL
hsl(106, 52%, 53%)HSV
hsv(106, 63%, 77%)OKLCH
oklch(73.9% 0.185 139.1)CMYK
cmyk(48%, 0%, 63%, 23%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66C549 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.18:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text9.65:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66C549 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66C549, useful for hover states, backgrounds, and text variants.