#1B33BB Color

#1B33BB is rgb(27, 51, 187) in RGB and hsl(231, 75%, 42%) in HSL. The closest CSS named color is MediumBlue. White text is most readable on this background.

#1B33BB

HEX#1B33BB

RGBrgb(27, 51, 187)

HSLhsl(231, 75%, 42%)

HSVhsv(231, 86%, 73%)

OKLCHoklch(41.3% 0.211 266.9)

CMYKcmyk(86%, 73%, 0%, 27%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B33BB background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text9.38:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.24:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B33BB based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B33BB Complementary#BBA31B Analogous#1B83BB Analogous#531BBB Triadic#BB1B33 Triadic#33BB1B

Tints & Shades

Lighter tints and darker shades of #1B33BB, useful for hover states, backgrounds, and text variants.

Tints

#203DDF #445CE4 #677BE9 #8B9AEE #AFB9F4 #D2D8F9

Shades

#182DA5 #14268A #111F74 #0D1859 #0A1243 #060B28

Use #1B33BB in Our Tools

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