#183FB4 Color

#183FB4 is rgb(24, 63, 180) in RGB and hsl(225, 76%, 40%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#183FB4

HEX#183FB4

RGBrgb(24, 63, 180)

HSLhsl(225, 76%, 40%)

HSVhsv(225, 87%, 71%)

OKLCHoklch(42.5% 0.19 264.8)

CMYKcmyk(87%, 65%, 0%, 29%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #183FB4 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text8.72:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.41:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #183FB4 based on color wheel relationships. Click any swatch for its full breakdown.

Base#183FB4 Complementary#B48D18 Analogous#188DB4 Analogous#3F18B4 Triadic#B4183F Triadic#3FB418

Tints & Shades

Lighter tints and darker shades of #183FB4, useful for hover states, backgrounds, and text variants.

Tints

#1D4CD7 #3E68E5 #6284EA #86A0EE #AABCF3 #D2DCF9

Shades

#15379D #122F87 #0F2870 #0C1E55 #09163F #060E28

Use #183FB4 in Our Tools

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