#66FFFF Color

#66FFFF is rgb(102, 255, 255) in RGB and hsl(180, 100%, 70%) in HSL. The closest CSS named color is Aquamarine. Black text is most readable on this background.

#66FFFF

HEX#66FFFF

RGBrgb(102, 255, 255)

HSLhsl(180, 100%, 70%)

HSVhsv(180, 60%, 100%)

OKLCHoklch(91.9% 0.129 195.2)

CMYKcmyk(60%, 0%, 0%, 0%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #66FFFF background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.21:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text17.31:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #66FFFF based on color wheel relationships. Click any swatch for its full breakdown.

Base#66FFFF Complementary#FF6666 Analogous#66FFB3 Analogous#66B2FF Triadic#FF66FF Triadic#FFFF66

Tints & Shades

Lighter tints and darker shades of #66FFFF, useful for hover states, backgrounds, and text variants.

Tints

#7AFFFF #8FFFFF #A3FFFF #B8FFFF #CCFFFF #E0FFFF

Shades

#38FFFF #05FFFF #00D6D6 #00A3A3 #007575 #004242

Use #66FFFF in Our Tools

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