#040a11

Color #040a11

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 4.57 Nearest Tailwind class gray-950 #030712 · ΔE 2.1

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#040a11

RGB

rgb(4, 10, 17)

HSL

hsl(212.3, 61.9%, 4.1%)

HSV / HSB

hsv(212.3, 76.5%, 6.7%)

CMYK

cmyk(76.5%, 41.2%, 0%, 93.3%)

LAB

lab(2.56, -0.39, -3.76)

LCH

lch(2.56, 3.78, 264.08)

OKLCH

oklch(14.1%, 0.0195, 247.38)

HWB

hwb(212.3, 1.6%, 93.3%)

Harmony colors

Complementary

#110b04

Analogous

#041011

#040a11

#040411

Triadic

#040a11

#11040a

#0a1104

Split-complementary

#040a11

#110404

#101104

Tetradic

#040a11

#0b0411

#110b04

#0a1104

Square

#040a11

#110410

#110b04

#041104

Shades

Color #040a11 mixed toward black.

#03080e

#03070b

#020508

#010306

#010203

Tints

Color #040a11 mixed toward white.

#143153

#235895

#397fd0

#7baae0

#bdd4ef

Tones

Color #040a11 mixed toward gray.

#050a10

#060a0f

#070a0e

#080a0d

#090a0c

Accessibility

Aa White text on this color

19.87:1

Aa Black text on this color

1.06:1

White text reads better on this background (19.87:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#070710 · ΔE 2.6

Deuteranopia

#06060f · ΔE 2.6

Tritanopia

#040e0e · ΔE 4.1

Achromatopsia

#090909 · ΔE 3.5

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

Code

CSS

background-color: #040a11;

Tailwind (arbitrary value)

bg-[#040a11]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#040a11 (#040a11) is rgb(4, 10, 17) in RGB.

No, #040a11 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

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 #040a11, or check how it holds up for accessibility.

Generate a palette → Check contrast