#1B288D Color

#1B288D is rgb(27, 40, 141) in RGB and hsl(233, 68%, 33%) in HSL. The closest CSS named color is MidnightBlue. White text is most readable on this background.

#1B288D

HEX#1B288D

RGBrgb(27, 40, 141)

HSLhsl(233, 68%, 33%)

HSVhsv(233, 81%, 55%)

OKLCHoklch(34.6% 0.165 269.2)

CMYKcmyk(81%, 72%, 0%, 45%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B288D background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text12.11:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.73:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B288D based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B288D Complementary#8D801B Analogous#1B628D Analogous#471B8D Triadic#8D1B28 Triadic#288D1B

Tints & Shades

Lighter tints and darker shades of #1B288D, useful for hover states, backgrounds, and text variants.

Tints

#2233B4 #3145D8 #5868DF #7E8BE7 #A5AEEE #D0D4F6

Shades

#18237C #141F6B #111A5A #0D1445 #0A0F33 #070A22

Use #1B288D in Our Tools

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