#1B3F5F Color

#1B3F5F is rgb(27, 63, 95) in RGB and hsl(208, 56%, 24%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#1B3F5F

HEX#1B3F5F

RGBrgb(27, 63, 95)

HSLhsl(208, 56%, 24%)

HSVhsv(208, 72%, 37%)

OKLCHoklch(35.8% 0.07 247.9)

CMYKcmyk(72%, 34%, 0%, 63%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B3F5F background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text10.92:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.92:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B3F5F based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B3F5F Complementary#5F3B1B Analogous#1B5F5D Analogous#1B1D5F Triadic#5F1B3F Triadic#3F5F1B

Tints & Shades

Lighter tints and darker shades of #1B3F5F, useful for hover states, backgrounds, and text variants.

Tints

#275D8B #3277B3 #5093CE #78ACD9 #A4C7E5 #CBDFF0

Shades

#183854 #143048 #11283C #0F2234 #0B1A28 #08131C

Use #1B3F5F in Our Tools

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