#040a29

Color #040a29

A vivid, highly saturated very dark blue.

Closest named color Black #000000 · ΔE 21.71 Nearest Tailwind class slate-900 #0f172b · ΔE 4.6

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Conversions

HEX

#040a29

RGB

rgb(4, 10, 41)

HSL

hsl(230.3, 82.2%, 8.8%)

HSV / HSB

hsv(230.3, 90.2%, 16.1%)

CMYK

cmyk(90.2%, 75.6%, 0%, 83.9%)

LAB

lab(3.64, 7.2, -20.16)

LCH

lch(3.64, 21.41, 289.65)

OKLCH

oklch(16.3%, 0.0641, 267.86)

HWB

hwb(230.3, 1.6%, 83.9%)

Harmony colors

Complementary

#292304

Analogous

#041c29

#040a29

#100429

Triadic

#040a29

#29040a

#0a2904

Split-complementary

#040a29

#291004

#1c2904

Tetradic

#040a29

#230429

#292304

#0a2904

Square

#040a29

#29041c

#292304

#042910

Shades

Color #040a29 mixed toward black.

#030822

#03071b

#020514

#01030e

#010207

Tints

Color #040a29 mixed toward white.

#0b1b70

#122cb6

#2b4aea

#7286f1

#b8c3f8

Tones

Color #040a29 mixed toward gray.

#070c26

#0a0e23

#0d1020

#10121d

#13141a

Accessibility

Aa White text on this color

19.43:1

Aa Black text on this color

1.08:1

White text reads better on this background (19.43:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#070724 · ΔE 1.8

Deuteranopia

#060623 · ΔE 2

Tritanopia

#041f1e · ΔE 21.2

Achromatopsia

#0d0d0d · ΔE 15.1

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

Code

CSS

background-color: #040a29;

Tailwind (arbitrary value)

bg-[#040a29]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#040a29 (#040a29) is rgb(4, 10, 41) in RGB.

No, #040a29 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 #040a29, or check how it holds up for accessibility.

Generate a palette → Check contrast