#183D4E Color

#183D4E is rgb(24, 61, 78) in RGB and hsl(199, 53%, 20%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#183D4E

HEX#183D4E

RGBrgb(24, 61, 78)

HSLhsl(199, 53%, 20%)

HSVhsv(199, 69%, 31%)

OKLCHoklch(34.1% 0.051 230.8)

CMYKcmyk(69%, 22%, 0%, 69%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #183D4E background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text11.56:1AA normal ✓AA large ✓AAA normal ✓

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

Color Harmonies

Colors that pair well with #183D4E based on color wheel relationships. Click any swatch for its full breakdown.

Base#183D4E Complementary#4E2918 Analogous#184E44 Analogous#18224E Triadic#4E183D Triadic#3D4E18

Tints & Shades

Lighter tints and darker shades of #183D4E, useful for hover states, backgrounds, and text variants.

Tints

#255E79 #3280A4 #489EC7 #76B7D5 #A1CEE2 #CCE4EF

Shades

#163746 #122E3B #102833 #0D222B #0B1B23 #071217

Use #183D4E in Our Tools

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