#283f5c

Color #283f5c

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 12.85 Nearest Tailwind class slate-700 #314158 · ΔE 2.5

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Conversions

HEX

#283f5c

RGB

rgb(40, 63, 92)

HSL

hsl(213.5, 39.4%, 25.9%)

HSV / HSB

hsv(213.5, 56.5%, 36.1%)

CMYK

cmyk(56.5%, 31.5%, 0%, 63.9%)

LAB

lab(26.09, 0.56, -20.02)

LCH

lch(26.09, 20.03, 271.6)

OKLCH

oklch(36.3%, 0.0582, 254.77)

HWB

hwb(213.5, 15.7%, 63.9%)

Harmony colors

Complementary

#5c4528

Analogous

#28595c

#283f5c

#2b285c

Triadic

#283f5c

#5c283f

#3f5c28

Split-complementary

#283f5c

#5c2b28

#595c28

Tetradic

#283f5c

#45285c

#5c4528

#3f5c28

Square

#283f5c

#5c2859

#5c4528

#285c2b

Shades

Color #283f5c mixed toward black.

#21354d

#1b2a3d

#14202e

#0d151f

#070b0f

Tints

Color #283f5c mixed toward white.

#3b5d88

#4f7bb3

#7b9cc6

#a7bdd9

#d3deec

Tones

Color #283f5c mixed toward gray.

#2c4058

#314053

#35414f

#39414b

#3e4246

Accessibility

Aa White text on this color

10.74:1

Aa Black text on this color

1.96:1

White text reads better on this background (10.74:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#333456 · ΔE 8.8

Deuteranopia

#323055 · ΔE 10

Tritanopia

#295150 · ΔE 18.2

Achromatopsia

#3e3e3e · ΔE 13.8

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

Code

CSS

background-color: #283f5c;

Tailwind (arbitrary value)

bg-[#283f5c]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Cornflower Blue #6495ed

Alice Blue #f0f8ff

Frequently asked questions

#283f5c (#283f5c) is rgb(40, 63, 92) in RGB.

No, #283f5c 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 #283f5c, or check how it holds up for accessibility.

Generate a palette → Check contrast