#21333B Color

#21333B is rgb(33, 51, 59) in RGB and hsl(198, 28%, 18%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#21333B
HEX#21333B
RGBrgb(33, 51, 59)
HSLhsl(198, 28%, 18%)
HSVhsv(198, 44%, 23%)
OKLCHoklch(30.9% 0.027 227.5)
CMYKcmyk(44%, 14%, 0%, 77%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #21333B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text13.11:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text1.6:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #21333B based on color wheel relationships. Click any swatch for its full breakdown.

Base#21333BComplementary#3B2921Analogous#213B36Analogous#21263BTriadic#3B2133Triadic#333B21

Tints & Shades

Lighter tints and darker shades of #21333B, useful for hover states, backgrounds, and text variants.

Use #21333B in Our Tools

Hex to RGBHex to HSLHex to CMYKHex to PantoneRGBA to Hex