#183B5D Color

#183B5D is rgb(24, 59, 93) in RGB and hsl(210, 59%, 23%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#183B5D

HEX#183B5D

RGBrgb(24, 59, 93)

HSLhsl(210, 59%, 23%)

HSVhsv(210, 74%, 36%)

OKLCHoklch(34.5% 0.072 250.1)

CMYKcmyk(74%, 37%, 0%, 64%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #183B5D background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text11.52:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.82:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #183B5D based on color wheel relationships. Click any swatch for its full breakdown.

Base#183B5D Complementary#5D3B18 Analogous#185D5D Analogous#18185D Triadic#5D183B Triadic#3B5D18

Tints & Shades

Lighter tints and darker shades of #183B5D, useful for hover states, backgrounds, and text variants.

Tints

#24578A #2E70B2 #498CD0 #75A8DB #A2C4E7 #CADEF1

Shades

#153351 #132E49 #10263D #0D1F31 #091724 #07121C

Use #183B5D in Our Tools

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