#1B3B5A Color

#1B3B5A is rgb(27, 59, 90) in RGB and hsl(210, 54%, 23%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#1B3B5A

HEX#1B3B5A

RGBrgb(27, 59, 90)

HSLhsl(210, 54%, 23%)

HSVhsv(210, 70%, 35%)

OKLCHoklch(34.4% 0.066 249.7)

CMYKcmyk(70%, 34%, 0%, 65%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B3B5A background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text11.54:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.82:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B3B5A based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B3B5A Complementary#5A3B1B Analogous#1B5A5A Analogous#1B1B5A Triadic#5A1B3B Triadic#3B5A1B

Tints & Shades

Lighter tints and darker shades of #1B3B5A, useful for hover states, backgrounds, and text variants.

Tints

#285786 #3470AD #4E8CCA #79A8D7 #A5C4E4 #CCDEF0

Shades

#17334F #152E47 #12263B #0E1F2F #0B1723 #08121B

Use #1B3B5A in Our Tools

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