#2a3037

Color #2a3037

A nearly neutral, gray-leaning very dark blue.

Closest named color Charcoal #36454f · ΔE 9.56 Nearest Tailwind class mist-800 #22292b · ΔE 4.3

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Conversions

HEX

#2a3037

RGB

rgb(42, 48, 55)

HSL

hsl(212.3, 13.4%, 19%)

HSV / HSB

hsv(212.3, 23.6%, 21.6%)

CMYK

cmyk(23.6%, 12.7%, 0%, 78.4%)

LAB

lab(19.56, -0.71, -5.32)

LCH

lch(19.56, 5.37, 262.4)

OKLCH

oklch(30.6%, 0.0151, 252.28)

HWB

hwb(212.3, 16.5%, 78.4%)

Harmony colors

Complementary

#37312a

Analogous

#2a3637

#2a3037

#2a2a37

Triadic

#2a3037

#372a30

#30372a

Split-complementary

#2a3037

#372a2a

#36372a

Tetradic

#2a3037

#312a37

#37312a

#30372a

Square

#2a3037

#372a36

#37312a

#2a372a

Shades

Color #2a3037 mixed toward black.

#23282e

#1c2025

#15181b

#0e1012

#070809

Tints

Color #2a3037 mixed toward white.

#48525e

#667485

#8a97a6

#b1b9c3

#d8dce1

Tones

Color #2a3037 mixed toward gray.

#2b3036

#2c3035

#2d3034

#2e3033

#2f3032

Accessibility

Aa White text on this color

13.32:1

Aa Black text on this color

1.58:1

White text reads better on this background (13.32:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2d2d35 · ΔE 4

Deuteranopia

#2c2c35 · ΔE 4.4

Tritanopia

#2a3434 · ΔE 5.8

Achromatopsia

#2f2f2f · ΔE 4.8

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

Code

CSS

background-color: #2a3037;

Tailwind (arbitrary value)

bg-[#2a3037]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#2a3037 (#2a3037) is rgb(42, 48, 55) in RGB.

No, #2a3037 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 #2a3037, or check how it holds up for accessibility.

Generate a palette → Check contrast