#183DA5 Color

#183DA5 is rgb(24, 61, 165) in RGB and hsl(224, 75%, 37%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#183DA5

HEX#183DA5

RGBrgb(24, 61, 165)

HSLhsl(224, 75%, 37%)

HSVhsv(224, 85%, 65%)

OKLCHoklch(40.7% 0.173 264.6)

CMYKcmyk(85%, 63%, 0%, 35%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #183DA5 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text9.33:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.25:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #183DA5 based on color wheel relationships. Click any swatch for its full breakdown.

Base#183DA5 Complementary#A57F18 Analogous#1884A5 Analogous#3918A5 Triadic#A5183D Triadic#3DA518

Tints & Shades

Lighter tints and darker shades of #183DA5, useful for hover states, backgrounds, and text variants.

Tints

#1D4CCD #3261E2 #5A80E7 #829FED #AABEF3 #CED9F8

Shades

#14358F #122E7D #0F2667 #0B1E50 #08163A #060F28

Use #183DA5 in Our Tools

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