#1f242f

Color #1f242f

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 14.84 Nearest Tailwind class gray-800 #1e2939 · ΔE 3.2

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Conversions

HEX

#1f242f

RGB

rgb(31, 36, 47)

HSL

hsl(221.3, 20.5%, 15.3%)

HSV / HSB

hsv(221.3, 34%, 18.4%)

CMYK

cmyk(34%, 23.4%, 0%, 81.6%)

LAB

lab(14.16, 0.97, -7.98)

LCH

lch(14.16, 8.04, 276.93)

OKLCH

oklch(26%, 0.022, 265.82)

HWB

hwb(221.3, 12.2%, 81.6%)

Harmony colors

Complementary

#2f2a1f

Analogous

#1f2c2f

#1f242f

#221f2f

Triadic

#1f242f

#2f1f24

#242f1f

Split-complementary

#1f242f

#2f221f

#2c2f1f

Tetradic

#1f242f

#2a1f2f

#2f2a1f

#242f1f

Square

#1f242f

#2f1f2c

#2f2a1f

#1f2f22

Shades

Color #1f242f mixed toward black.

#1a1e27

#15181f

#101218

#0a0c10

#050608

Tints

Color #1f242f mixed toward white.

#3c455a

#586686

#7d8ba9

#a8b1c6

#d4d8e2

Tones

Color #1f242f mixed toward gray.

#20252e

#22252c

#23262b

#24262a

#262728

Accessibility

Aa White text on this color

15.54:1

Aa Black text on this color

1.35:1

White text reads better on this background (15.54:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#21212d · ΔE 3.3

Deuteranopia

#21212c · ΔE 3

Tritanopia

#1f2b2a · ΔE 10

Achromatopsia

#242424 · ΔE 6.9

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

Code

CSS

background-color: #1f242f;

Tailwind (arbitrary value)

bg-[#1f242f]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#1f242f (#1f242f) is rgb(31, 36, 47) in RGB.

No, #1f242f 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 #1f242f, or check how it holds up for accessibility.

Generate a palette → Check contrast