#1B3F5A Color

#1B3F5A is rgb(27, 63, 90) in RGB and hsl(206, 54%, 23%) in HSL. The closest CSS named color is DarkSlateGray. White text is most readable on this background.

#1B3F5A

HEX#1B3F5A

RGBrgb(27, 63, 90)

HSLhsl(206, 54%, 23%)

HSVhsv(206, 70%, 35%)

OKLCHoklch(35.5% 0.063 243.6)

CMYKcmyk(70%, 30%, 0%, 65%)

Text Contrast & Accessibility

WCAG contrast ratios for text on a #1B3F5A background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.

TextWhite text11.02:1AA normal ✓AA large ✓AAA normal ✓

TextBlack text1.91:1AA normal ✗AA large ✗AAA normal ✗

Color Harmonies

Colors that pair well with #1B3F5A based on color wheel relationships. Click any swatch for its full breakdown.

Base#1B3F5A Complementary#5A361B Analogous#1B5A56 Analogous#1B1F5A Triadic#5A1B3F Triadic#3F5A1B

Tints & Shades

Lighter tints and darker shades of #1B3F5A, useful for hover states, backgrounds, and text variants.

Tints

#285D86 #3478AD #4E95CA #79AFD7 #A5C9E4 #CCE0F0

Shades

#17374F #153147 #12293B #0E212F #0B1923 #08131B

Use #1B3F5A in Our Tools

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