#21F5FD Color

#21F5FD is rgb(33, 245, 253) in RGB and hsl(182, 98%, 56%) in HSL. The closest CSS named color is Aqua. Black text is most readable on this background.

#21F5FD

HEX#21F5FD

RGBrgb(33, 245, 253)

HSLhsl(182, 98%, 56%)

HSVhsv(182, 87%, 99%)

OKLCHoklch(88.3% 0.147 199.2)

CMYKcmyk(87%, 3%, 0%, 1%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21F5FD background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text1.35:1AA normal ✗AA large ✗AAA normal ✗

TextBlack text15.54:1AA normal ✓AA large ✓AAA normal ✓

Color Harmonies

Colors that pair well with #21F5FD based on color wheel relationships. Click any swatch for its full breakdown.

Base#21F5FD Complementary#FD2821 Analogous#21FD96 Analogous#2187FD Triadic#FD21F5 Triadic#F5FD21

Tints & Shades

Lighter tints and darker shades of #21F5FD, useful for hover states, backgrounds, and text variants.

Tints

#3FF7FD #5DF8FD #7CF9FE #9AFBFE #B8FCFE #D7FDFF

Shades

#02EFF7 #02C8CF #02A6AC #017F83 #015D60 #013638

Use #21F5FD in Our Tools

Hex to RGB Hex to HSL Hex to CMYK Hex to Pantone RGBA to Hex