#040a0a

Color #040a0a

A moderately saturated very dark cyan.

Closest named color Black #000000 · ΔE 2.91 Nearest Tailwind class mist-950 #090b0c · ΔE 1.7

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Conversions

HEX

#040a0a

RGB

rgb(4, 10, 10)

HSL

hsl(180, 42.9%, 2.7%)

HSV / HSB

hsv(180, 60%, 3.9%)

CMYK

cmyk(60%, 0%, 0%, 96.1%)

LAB

lab(2.39, -1.57, -0.55)

LCH

lch(2.39, 1.66, 199.31)

OKLCH

oklch(13.7%, 0.012, 196.01)

HWB

hwb(180, 1.6%, 96.1%)

Harmony colors

Complementary

#0a0404

Analogous

#040a07

#040a0a

#04070a

Triadic

#040a0a

#0a040a

#0a0a04

Split-complementary

#040a0a

#0a0407

#0a0704

Tetradic

#040a0a

#04040a

#0a0404

#0a0a04

Square

#040a0a

#07040a

#0a0404

#070a04

Shades

Color #040a0a mixed toward black.

#030808

#030707

#020505

#010303

#010202

Tints

Color #040a0a mixed toward white.

#1c4545

#338080

#4eb8b8

#89d0d0

#c4e7e7

Tones

Color #040a0a mixed toward gray.

#040909

#050909

#050808

#060808

#060707

Accessibility

Aa White text on this color

19.94:1

Aa Black text on this color

1.05:1

White text reads better on this background (19.94:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#07070a · ΔE 2.9

Deuteranopia

#06060a · ΔE 3.2

Tritanopia

#040a0a · ΔE 0

Achromatopsia

#090909 · ΔE 2.3

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

Code

CSS

background-color: #040a0a;

Tailwind (arbitrary value)

bg-[#040a0a]

Related colors

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Dark Slate Gray #2f4f4f

Light Cyan #e0ffff

Pale Turquoise #afeeee

Frequently asked questions

#040a0a (#040a0a) is rgb(4, 10, 10) in RGB.

No, #040a0a 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.

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 #040a0a, or check how it holds up for accessibility.

Generate a palette → Check contrast