#183D5D Color

#183D5D is rgb(24, 61, 93) in RGB and hsl(208, 59%, 23%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#183D5D

HEX#183D5D

RGBrgb(24, 61, 93)

HSLhsl(208, 59%, 23%)

HSVhsv(208, 74%, 36%)

OKLCHoklch(35% 0.07 247.5)

CMYKcmyk(74%, 34%, 0%, 64%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #183D5D background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text11.26:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.86:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #183D5D based on color wheel relationships. Click any swatch for its full breakdown.

Base#183D5D Complementary#5D3818 Analogous#185D5B Analogous#181A5D Triadic#5D183D Triadic#3D5D18

Tints & Shades

Lighter tints and darker shades of #183D5D, useful for hover states, backgrounds, and text variants.

Tints

#245A8A #2E75B2 #4991D0 #75ACDB #A2C7E7 #CADFF1

Shades

#153551 #133049 #10283D #0D2031 #091824 #07131C

Use #183D5D in Our Tools

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