#21303B Color

#21303B is rgb(33, 48, 59) in RGB and hsl(205, 28%, 18%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#21303B

HEX#21303B

RGBrgb(33, 48, 59)

HSLhsl(205, 28%, 18%)

HSVhsv(205, 44%, 23%)

OKLCHoklch(30.1% 0.028 240.7)

CMYKcmyk(44%, 19%, 0%, 77%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21303B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text13.54:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.55:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #21303B based on color wheel relationships. Click any swatch for its full breakdown.

Base#21303B Complementary#3B2C21 Analogous#213B39 Analogous#21233B Triadic#3B2130 Triadic#303B21

Tints & Shades

Lighter tints and darker shades of #21303B, useful for hover states, backgrounds, and text variants.

Tints

#354D5F #4B6D86 #628AA7 #89A7BD #ADC2D1 #D5DFE7

Shades

#1D2B34 #1A252E #162027 #121B21 #0F151A #0B1014

Use #21303B in Our Tools

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