#183B4E Color

#183B4E is rgb(24, 59, 78) in RGB and hsl(201, 53%, 20%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#183B4E
HEX#183B4E
RGBrgb(24, 59, 78)
HSLhsl(201, 53%, 20%)
HSVhsv(201, 69%, 31%)
OKLCHoklch(33.6% 0.052 235.1)
CMYKcmyk(69%, 24%, 0%, 69%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #183B4E background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text11.83:1AA normal ✓AA large ✓AAA normal ✓
TextBlack text1.77:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #183B4E based on color wheel relationships. Click any swatch for its full breakdown.

Base#183B4EComplementary#4E2B18Analogous#184E46Analogous#18204ETriadic#4E183BTriadic#3B4E18

Tints & Shades

Lighter tints and darker shades of #183B4E, useful for hover states, backgrounds, and text variants.

Use #183B4E in Our Tools

Hex to RGBHex to HSLHex to CMYKHex to PantoneRGBA to Hex