#1b2831

Color #1b2831

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 13.07 Nearest Tailwind class mist-800 #22292b · ΔE 4.3

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Conversions

HEX

#1b2831

RGB

rgb(27, 40, 49)

HSL

hsl(204.5, 28.9%, 14.9%)

HSV / HSB

hsv(204.5, 44.9%, 19.2%)

CMYK

cmyk(44.9%, 18.4%, 0%, 80.8%)

LAB

lab(15.34, -2.69, -7.64)

LCH

lch(15.34, 8.1, 250.6)

OKLCH

oklch(26.9%, 0.0245, 239.04)

HWB

hwb(204.5, 10.6%, 80.8%)

Harmony colors

Complementary

#31241b

Analogous

#1b312f

#1b2831

#1b1d31

Triadic

#1b2831

#311b28

#28311b

Split-complementary

#1b2831

#311b1d

#312f1b

Tetradic

#1b2831

#241b31

#31241b

#28311b

Square

#1b2831

#2f1b31

#31241b

#1d311b

Shades

Color #1b2831 mixed toward black.

#172129

#121b21

#0e1418

#090d10

#050708

Tints

Color #1b2831 mixed toward white.

#354e60

#4e748e

#7398b2

#a2bacc

#d0dde5

Tones

Color #1b2831 mixed toward gray.

#1d282f

#1f272d

#21272b

#22272a

#242628

Accessibility

Aa White text on this color

15.06:1

Aa Black text on this color

1.39:1

White text reads better on this background (15.06:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#21212f · ΔE 9

Deuteranopia

#201f2e · ΔE 10.1

Tritanopia

#1c2d2d · ΔE 7

Achromatopsia

#262626 · ΔE 7.2

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

Code

CSS

background-color: #1b2831;

Tailwind (arbitrary value)

bg-[#1b2831]

Related colors

Charcoal #36454f

Light Sky Blue #87cefa

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#1b2831 (#1b2831) is rgb(27, 40, 49) in RGB.

No, #1b2831 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #1b2831, or check how it holds up for accessibility.

Generate a palette → Check contrast