#1B359D Color

#1B359D is rgb(27, 53, 157) in RGB and hsl(228, 71%, 36%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#1B359D

HEX#1B359D

RGBrgb(27, 53, 157)

HSLhsl(228, 71%, 36%)

HSVhsv(228, 83%, 62%)

OKLCHoklch(38.5% 0.171 266.7)

CMYKcmyk(83%, 66%, 0%, 38%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B359D background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text10.28:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text2.04:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B359D based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B359D Complementary#9D831B Analogous#1B769D Analogous#421B9D Triadic#9D1B35 Triadic#359D1B

Tints & Shades

Lighter tints and darker shades of #1B359D, useful for hover states, backgrounds, and text variants.

Tints

#2142C4 #3658DD #5E78E4 #8196EA #A8B6F0 #CFD7F7

Shades

#172D87 #142876 #102060 #0D1A4E #0A1339 #070D27

Use #1B359D in Our Tools

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