#1B4583 Color

#1B4583 is rgb(27, 69, 131) in RGB and hsl(216, 66%, 31%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#1B4583

HEX#1B4583

RGBrgb(27, 69, 131)

HSLhsl(216, 66%, 31%)

HSVhsv(216, 79%, 51%)

OKLCHoklch(39.7% 0.114 258.4)

CMYKcmyk(79%, 47%, 0%, 49%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B4583 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text9.44:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.23:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B4583 based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B4583 Complementary#83591B Analogous#1B7983 Analogous#251B83 Triadic#831B45 Triadic#45831B

Tints & Shades

Lighter tints and darker shades of #1B4583, useful for hover states, backgrounds, and text variants.

Tints

#245BAE #2B6FD4 #568CDC #7CA6E4 #A6C2ED #CCDCF5

Shades

#173C72 #143361 #102A50 #0E2344 #0A1B33 #071222

Use #1B4583 in Our Tools

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