#183D8B Color

#183D8B is rgb(24, 61, 139) in RGB and hsl(221, 71%, 32%) in HSL. The closest CSS named color is MidnightBlue. White text is most readable on this background.

#183D8B

HEX#183D8B

RGBrgb(24, 61, 139)

HSLhsl(221, 71%, 32%)

HSVhsv(221, 83%, 55%)

OKLCHoklch(38.4% 0.137 262.7)

CMYKcmyk(83%, 56%, 0%, 45%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #183D8B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text10.1:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.08:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #183D8B based on color wheel relationships. Click any swatch for its full breakdown.

Base#183D8B Complementary#8C6718 Analogous#18768C Analogous#2D188C Triadic#8C183C Triadic#3C8C18

Tints & Shades

Lighter tints and darker shades of #183D8B, useful for hover states, backgrounds, and text variants.

Tints

#1E4DB3 #2962DB #517EE1 #7C9FE9 #A3BCEF #CFDCF7

Shades

#15357A #122D69 #0F2657 #0C1E46 #091734 #060F23

Use #183D8B in Our Tools

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