#1b3155

Color #1b3155

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 19.89 Nearest Tailwind class blue-950 #162456 · ΔE 5.3

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Conversions

HEX

#1b3155

RGB

rgb(27, 49, 85)

HSL

hsl(217.2, 51.8%, 22%)

HSV / HSB

hsv(217.2, 68.2%, 33.3%)

CMYK

cmyk(68.2%, 42.4%, 0%, 66.7%)

LAB

lab(20.38, 4.45, -24.46)

LCH

lch(20.38, 24.86, 280.31)

OKLCH

oklch(31.5%, 0.0706, 259.8)

HWB

hwb(217.2, 10.6%, 66.7%)

Harmony colors

Complementary

#553f1b

Analogous

#1b4e55

#1b3155

#221b55

Triadic

#1b3155

#551b31

#31551b

Split-complementary

#1b3155

#55221b

#4e551b

Tetradic

#1b3155

#3f1b55

#553f1b

#31551b

Square

#1b3155

#551b4e

#553f1b

#1b5522

Shades

Color #1b3155 mixed toward black.

#172947

#122139

#0e192b

#09101c

#05080e

Tints

Color #1b3155 mixed toward white.

#2b4e87

#3b6bba

#688fcf

#9ab4df

#cddaef

Tones

Color #1b3155 mixed toward gray.

#203250

#25334b

#2a3547

#2e3642

#33373d

Accessibility

Aa White text on this color

12.99:1

Aa Black text on this color

1.62:1

White text reads better on this background (12.99:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#26264e · ΔE 6.9

Deuteranopia

#25234c · ΔE 7.8

Tritanopia

#1d4847 · ΔE 21.6

Achromatopsia

#313131 · ΔE 16.1

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #1b3155;

Tailwind (arbitrary value)

bg-[#1b3155]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#1b3155 (#1b3155) is rgb(27, 49, 85) in RGB.

No, #1b3155 is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #1b3155, or check how it holds up for accessibility.

Generate a palette → Check contrast