#373640

Color #373640

A nearly neutral, gray-leaning dark blue.

Closest named color Charcoal #36454f · ΔE 8.32 Nearest Tailwind class zinc-700 #3f3f46 · ΔE 3.4

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Conversions

HEX

#373640

RGB

rgb(55, 54, 64)

HSL

hsl(246, 8.5%, 23.1%)

HSV / HSB

hsv(246, 15.6%, 25.1%)

CMYK

cmyk(14.1%, 15.6%, 0%, 74.9%)

LAB

lab(23.07, 2.86, -6.05)

LCH

lch(23.07, 6.69, 295.3)

OKLCH

oklch(33.8%, 0.0175, 290.1)

HWB

hwb(246, 21.2%, 74.9%)

Harmony colors

Complementary

#3f4036

Analogous

#363a40

#373640

#3c3640

Triadic

#373640

#403736

#364037

Split-complementary

#373640

#403c36

#3a4036

Tetradic

#373640

#40363f

#3f4036

#364037

Square

#373640

#40363a

#3f4036

#36403c

Shades

Color #373640 mixed toward black.

#2e2d35

#25242b

#1b1b20

#121215

#09090b

Tints

Color #373640 mixed toward white.

#555463

#747287

#9695a5

#b9b8c3

#dcdce1

Tones

Color #373640 mixed toward gray.

#38373f

#38383e

#39383d

#3a393d

#3a3a3c

Accessibility

Aa White text on this color

11.9:1

Aa Black text on this color

1.76:1

White text reads better on this background (11.9:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#37373e · ΔE 1.9

Deuteranopia

#37373d · ΔE 2.5

Tritanopia

#373c3b · ΔE 8.7

Achromatopsia

#373737 · ΔE 6.4

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

Code

CSS

background-color: #373640;

Tailwind (arbitrary value)

bg-[#373640]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#373640 (#373640) is rgb(55, 54, 64) in RGB.

No, #373640 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 #373640, or check how it holds up for accessibility.

Generate a palette → Check contrast