#ECFF42 Color
#ECFF42 is rgb(236, 255, 66) in RGB and hsl(66, 100%, 63%) in HSL. The closest CSS named color is GreenYellow. Black text is most readable on this background.
#ECFF42
HEX
#ECFF42RGB
rgb(236, 255, 66)HSL
hsl(66, 100%, 63%)HSV
hsv(66, 74%, 100%)OKLCH
oklch(95.5% 0.199 115.4)CMYK
cmyk(7%, 0%, 74%, 0%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #ECFF42 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text1.11:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text18.95:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #ECFF42 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #ECFF42, useful for hover states, backgrounds, and text variants.