#42E9FF Color

#42E9FF is rgb(66, 233, 255) in RGB and hsl(187, 100%, 63%) in HSL. The closest CSS named color is Turquoise. Black text is most readable on this background.

#42E9FF
HEX#42E9FF
RGBrgb(66, 233, 255)
HSLhsl(187, 100%, 63%)
HSVhsv(187, 74%, 100%)
OKLCHoklch(86% 0.134 208.2)
CMYKcmyk(74%, 9%, 0%, 0%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #42E9FF background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.47:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text14.33:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #42E9FF based on color wheel relationships. Click any swatch for its full breakdown.

Base#42E9FFComplementary#FF5842Analogous#42FFB7Analogous#428BFFTriadic#FF42E9Triadic#E9FF42

Tints & Shades

Lighter tints and darker shades of #42E9FF, useful for hover states, backgrounds, and text variants.

Use #42E9FF in Our Tools

Hex to RGBHex to HSLHex to CMYKHex to PantoneRGBA to Hex