#1B3DA1 Color

#1B3DA1 is rgb(27, 61, 161) in RGB and hsl(225, 71%, 37%) in HSL. The closest CSS named color is DarkSlateBlue. White text is most readable on this background.

#1B3DA1

HEX#1B3DA1

RGBrgb(27, 61, 161)

HSLhsl(225, 71%, 37%)

HSVhsv(225, 83%, 63%)

OKLCHoklch(40.5% 0.167 265.1)

CMYKcmyk(83%, 62%, 0%, 37%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B3DA1 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text9.42:1AA normal ✓AA large ✓AAA normal ✓

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

Color Harmonies

Colors that pair well with #1B3DA1 based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B3DA1 Complementary#A1801B Analogous#1B80A1 Analogous#3D1BA1 Triadic#A11B3D Triadic#3DA11B

Tints & Shades

Lighter tints and darker shades of #1B3DA1, useful for hover states, backgrounds, and text variants.

Tints

#224CC9 #3660DD #5E7FE4 #859EEA #ACBDF1 #CFD9F7

Shades

#18358C #152E7A #112664 #0D1E4E #0A1539 #070F27

Use #1B3DA1 in Our Tools

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