#1f2731

Color #1f2731

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 13.37 Nearest Tailwind class gray-800 #1e2939 · ΔE 3.1

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Conversions

HEX

#1f2731

RGB

rgb(31, 39, 49)

HSL

hsl(213.3, 22.5%, 15.7%)

HSV / HSB

hsv(213.3, 36.7%, 19.2%)

CMYK

cmyk(36.7%, 20.4%, 0%, 80.8%)

LAB

lab(15.3, -0.53, -7.68)

LCH

lch(15.3, 7.7, 266.05)

OKLCH

oklch(27%, 0.0219, 254.13)

HWB

hwb(213.3, 12.2%, 80.8%)

Harmony colors

Complementary

#31291f

Analogous

#1f3031

#1f2731

#201f31

Triadic

#1f2731

#311f27

#27311f

Split-complementary

#1f2731

#31201f

#30311f

Tetradic

#1f2731

#291f31

#31291f

#27311f

Square

#1f2731

#311f30

#31291f

#1f3120

Shades

Color #1f2731 mixed toward black.

#1a2129

#151a21

#101419

#0a0d10

#050708

Tints

Color #1f2731 mixed toward white.

#3b4a5d

#576d89

#7b91ac

#a7b6c7

#d3dae3

Tones

Color #1f2731 mixed toward gray.

#212730

#22272e

#24282d

#25282b

#27282a

Accessibility

Aa White text on this color

15.08:1

Aa Black text on this color

1.39:1

White text reads better on this background (15.08:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#23232f · ΔE 5.3

Deuteranopia

#22222e · ΔE 5.4

Tritanopia

#1f2d2d · ΔE 8.3

Achromatopsia

#262626 · ΔE 6.6

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

Code

CSS

background-color: #1f2731;

Tailwind (arbitrary value)

bg-[#1f2731]

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

#1f2731 (#1f2731) is rgb(31, 39, 49) in RGB.

No, #1f2731 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 #1f2731, or check how it holds up for accessibility.

Generate a palette → Check contrast