#283640

Color #283640

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 6.6 Nearest Tailwind class mist-700 #394447 · ΔE 6.1

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Conversions

HEX

#283640

RGB

rgb(40, 54, 64)

HSL

hsl(205, 23.1%, 20.4%)

HSV / HSB

hsv(205, 37.5%, 25.1%)

CMYK

cmyk(37.5%, 15.6%, 0%, 74.9%)

LAB

lab(21.8, -2.84, -8.1)

LCH

lch(21.8, 8.58, 250.68)

OKLCH

oklch(32.5%, 0.0257, 239.65)

HWB

hwb(205, 15.7%, 74.9%)

Harmony colors

Complementary

#403228

Analogous

#28403e

#283640

#282a40

Triadic

#283640

#402836

#364028

Split-complementary

#283640

#40282a

#403e28

Tetradic

#283640

#322840

#403228

#364028

Square

#283640

#3e2840

#403228

#2a4028

Shades

Color #283640 mixed toward black.

#212d35

#1b242b

#141b20

#0d1215

#07090b

Tints

Color #283640 mixed toward white.

#42596a

#5c7c93

#829db1

#acbecb

#d5dee5

Tones

Color #283640 mixed toward gray.

#2a363e

#2c353c

#2e353a

#303538

#323436

Accessibility

Aa White text on this color

12.41:1

Aa Black text on this color

1.69:1

White text reads better on this background (12.41:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2f2f3e · ΔE 9.2

Deuteranopia

#2e2d3d · ΔE 10.2

Tritanopia

#293c3b · ΔE 8.1

Achromatopsia

#343434 · ΔE 7.6

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

Code

CSS

background-color: #283640;

Tailwind (arbitrary value)

bg-[#283640]

Related colors

Charcoal #36454f

Light Sky Blue #87cefa

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Frequently asked questions

#283640 (#283640) is rgb(40, 54, 64) in RGB.

No, #283640 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 #283640, or check how it holds up for accessibility.

Generate a palette → Check contrast