#1B3583 Color

#1B3583 is rgb(27, 53, 131) in RGB and hsl(225, 66%, 31%) in HSL. The closest CSS named color is MidnightBlue. White text is most readable on this background.

#1B3583

HEX#1B3583

RGBrgb(27, 53, 131)

HSLhsl(225, 66%, 31%)

HSVhsv(225, 79%, 51%)

OKLCHoklch(36.1% 0.135 265.8)

CMYKcmyk(79%, 60%, 0%, 49%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B3583 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text11.15:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.88:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B3583 based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B3583 Complementary#83691B Analogous#1B6983 Analogous#351B83 Triadic#831B35 Triadic#35831B

Tints & Shades

Lighter tints and darker shades of #1B3583, useful for hover states, backgrounds, and text variants.

Tints

#2446AE #2B55D4 #5677DC #7C96E4 #A6B8ED #CCD6F5

Shades

#172E72 #142761 #102050 #0E1B44 #0A1533 #070E22

Use #1B3583 in Our Tools

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