#040d3f

Color #040d3f

A vivid, highly saturated very dark blue.

Closest named color Midnight Blue #191970 · ΔE 24.21 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 4.5

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

Conversions

HEX

#040d3f

RGB

rgb(4, 13, 63)

HSL

hsl(230.8, 88.1%, 13.1%)

HSV / HSB

hsv(230.8, 93.7%, 24.7%)

CMYK

cmyk(93.7%, 79.4%, 0%, 75.3%)

LAB

lab(6.07, 17.64, -32.47)

LCH

lch(6.07, 36.95, 298.51)

OKLCH

oklch(19.6%, 0.0952, 266.69)

HWB

hwb(230.8, 1.6%, 75.3%)

Harmony colors

Complementary

#3f3604

Analogous

#042a3f

#040d3f

#18043f

Triadic

#040d3f

#3f040d

#0d3f04

Split-complementary

#040d3f

#3f1804

#2a3f04

Tetradic

#040d3f

#36043f

#3f3604

#0d3f04

Square

#040d3f

#3f042a

#3f3604

#043f18

Shades

Color #040d3f mixed toward black.

#030b34

#03092a

#02071f

#010415

#01020a

Tints

Color #040d3f mixed toward white.

#081b84

#0d2aca

#2f4df2

#7488f6

#bac4fb

Tones

Color #040d3f mixed toward gray.

#09103a

#0e1435

#131730

#181b2b

#1d1e26

Accessibility

Aa White text on this color

18.51:1

Aa Black text on this color

1.13:1

White text reads better on this background (18.51:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#080837 · ΔE 1.8

Deuteranopia

#070735 · ΔE 2.2

Tritanopia

#04302f · ΔE 26.3

Achromatopsia

#131313 · ΔE 21.1

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

Code

CSS

background-color: #040d3f;

Tailwind (arbitrary value)

bg-[#040d3f]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#040d3f (#040d3f) is rgb(4, 13, 63) in RGB.

No, #040d3f 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.

Try it →

Build something with this color

Generate a full palette from #040d3f, or check how it holds up for accessibility.

Generate a palette → Check contrast