#EFFF42 Color

#EFFF42 is rgb(239, 255, 66) in RGB and hsl(65, 100%, 63%) in HSL. The closest CSS named color is Yellow. Black text is most readable on this background.

#EFFF42

HEX#EFFF42

RGBrgb(239, 255, 66)

HSLhsl(65, 100%, 63%)

HSVhsv(65, 74%, 100%)

OKLCHoklch(95.7% 0.198 114.5)

CMYKcmyk(6%, 0%, 74%, 0%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #EFFF42 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

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

TextBlack text19.05:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #EFFF42 based on color wheel relationships. Click any swatch for its full breakdown.

Base#EFFF42 Complementary#5242FF Analogous#FFB042 Analogous#91FF42 Triadic#42EFFF Triadic#FF42EF

Tints & Shades

Lighter tints and darker shades of #EFFF42, useful for hover states, backgrounds, and text variants.

Tints

#F1FF5C #F4FF75 #F6FF8F #F8FFA8 #FAFFC2 #FCFFDB

Shades

#ECFF1A #D7EB00 #B2C200 #889400 #626B00 #383D00

Use #EFFF42 in Our Tools

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