#040c24

Color #040c24

A vivid, highly saturated very dark blue.

Closest named color Black #000000 · ΔE 17.12 Nearest Tailwind class slate-900 #0f172b · ΔE 2.7

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Conversions

HEX

#040c24

RGB

rgb(4, 12, 36)

HSL

hsl(225, 80%, 7.8%)

HSV / HSB

hsv(225, 88.9%, 14.1%)

CMYK

cmyk(88.9%, 66.7%, 0%, 85.9%)

LAB

lab(3.76, 4.28, -16.14)

LCH

lch(3.76, 16.7, 284.85)

OKLCH

oklch(16.3%, 0.0521, 264.72)

HWB

hwb(225, 1.6%, 85.9%)

Harmony colors

Complementary

#241c04

Analogous

#041c24

#040c24

#0c0424

Triadic

#040c24

#24040c

#0c2404

Split-complementary

#040c24

#240c04

#1c2404

Tetradic

#040c24

#1c0424

#241c04

#0c2404

Square

#040c24

#24041c

#241c04

#04240c

Shades

Color #040c24 mixed toward black.

#030a1e

#030818

#020612

#01040c

#010206

Tints

Color #040c24 mixed toward white.

#0c236a

#143bb1

#2b5ae7

#7291ef

#b8c8f7

Tones

Color #040c24 mixed toward gray.

#070d21

#090f1e

#0c101c

#0f1119

#111317

Accessibility

Aa White text on this color

19.39:1

Aa Black text on this color

1.08:1

White text reads better on this background (19.39:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#080820 · ΔE 2.3

Deuteranopia

#07061f · ΔE 2.6

Tritanopia

#041c1b · ΔE 17.8

Achromatopsia

#0d0d0d · ΔE 12.5

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

Code

CSS

background-color: #040c24;

Tailwind (arbitrary value)

bg-[#040c24]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#040c24 (#040c24) is rgb(4, 12, 36) in RGB.

No, #040c24 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 #040c24, or check how it holds up for accessibility.

Generate a palette → Check contrast