#040024

Color #040024

A vivid, highly saturated very dark blue.

Closest named color Black #000000 · ΔE 21.86 Nearest Tailwind class slate-900 #0f172b · ΔE 6.4

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Conversions

HEX

#040024

RGB

rgb(4, 0, 36)

HSL

hsl(246.7, 100%, 7.1%)

HSV / HSB

hsv(246.7, 100%, 14.1%)

CMYK

cmyk(88.9%, 100%, 0%, 85.9%)

LAB

lab(1.38, 9.13, -19.81)

LCH

lch(1.38, 21.81, 294.74)

OKLCH

oklch(12.5%, 0.0776, 276.66)

HWB

hwb(246.7, 0%, 85.9%)

Harmony colors

Complementary

#202400

Analogous

#000e24

#040024

#160024

Triadic

#040024

#240400

#002404

Split-complementary

#040024

#241600

#0e2400

Tetradic

#040024

#240020

#202400

#002404

Square

#040024

#24000e

#202400

#002416

Shades

Color #040024 mixed toward black.

#03001e

#030018

#020012

#01000c

#010006

Tints

Color #040024 mixed toward white.

#0d0073

#1600c2

#2d12ff

#7361ff

#b9b0ff

Tones

Color #040024 mixed toward gray.

#060321

#09061e

#0b091b

#0d0c18

#100f15

Accessibility

Aa White text on this color

20.38:1

Aa Black text on this color

1.03:1

White text reads better on this background (20.38:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#02021f · ΔE 3

Deuteranopia

#03031d · ΔE 4.1

Tritanopia

#041918 · ΔE 20.6

Achromatopsia

#050505 · ΔE 15.6

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

Code

CSS

background-color: #040024;

Tailwind (arbitrary value)

bg-[#040024]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#040024 (#040024) is rgb(4, 0, 36) in RGB.

No, #040024 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 #040024, or check how it holds up for accessibility.

Generate a palette → Check contrast