#1B309D Color

#1B309D is rgb(27, 48, 157) in RGB and hsl(230, 71%, 36%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#1B309D

HEX#1B309D

RGBrgb(27, 48, 157)

HSLhsl(230, 71%, 36%)

HSVhsv(230, 83%, 62%)

OKLCHoklch(37.6% 0.177 267.6)

CMYKcmyk(83%, 69%, 0%, 38%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B309D background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text10.73:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.96:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B309D based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B309D Complementary#9D871B Analogous#1B729D Analogous#461B9D Triadic#9D1B30 Triadic#309D1B

Tints & Shades

Lighter tints and darker shades of #1B309D, useful for hover states, backgrounds, and text variants.

Tints

#213CC4 #3652DD #5E74E4 #8192EA #A8B4F0 #CFD6F7

Shades

#172A87 #142476 #101E60 #0D184E #0A1139 #070C27

Use #1B309D in Our Tools

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