#1B3B9D Color

#1B3B9D is rgb(27, 59, 157) in RGB and hsl(225, 71%, 36%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#1B3B9D

HEX#1B3B9D

RGBrgb(27, 59, 157)

HSLhsl(225, 71%, 36%)

HSVhsv(225, 83%, 62%)

OKLCHoklch(39.7% 0.164 265.4)

CMYKcmyk(83%, 62%, 0%, 38%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B3B9D background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text9.73:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.16:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B3B9D based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B3B9D Complementary#9D7C1B Analogous#1B7C9D Analogous#3B1B9D Triadic#9D1B3B Triadic#3B9D1B

Tints & Shades

Lighter tints and darker shades of #1B3B9D, useful for hover states, backgrounds, and text variants.

Tints

#214AC4 #3660DD #5E7FE4 #819BEA #A8BAF0 #CFD9F7

Shades

#173387 #142C76 #102460 #0D1E4E #0A1539 #070F27

Use #1B3B9D in Our Tools

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