#04172f

Color #04172f

A vivid, highly saturated very dark blue.

Closest named color Black #000000 · ΔE 20.06 Nearest Tailwind class slate-900 #0f172b · ΔE 3

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Conversions

HEX

#04172f

RGB

rgb(4, 23, 47)

HSL

hsl(213.5, 84.3%, 10%)

HSV / HSB

hsv(213.5, 91.5%, 18.4%)

CMYK

cmyk(91.5%, 51.1%, 0%, 81.6%)

LAB

lab(7.62, 2.75, -18.35)

LCH

lch(7.62, 18.55, 278.52)

OKLCH

oklch(20.4%, 0.0544, 254.66)

HWB

hwb(213.5, 1.6%, 81.6%)

Harmony colors

Complementary

#2f1c04

Analogous

#042c2f

#04172f

#07042f

Triadic

#04172f

#2f0417

#172f04

Split-complementary

#04172f

#2f0704

#2c2f04

Tetradic

#04172f

#1c042f

#2f1c04

#172f04

Square

#04172f

#2f042c

#2f1c04

#042f07

Shades

Color #04172f mixed toward black.

#031327

#030f1f

#020b17

#010810

#010408

Tints

Color #04172f mixed toward white.

#0a3975

#105cbc

#2c81ed

#72abf3

#b9d5f9

Tones

Color #04172f mixed toward gray.

#08172b

#0b1828

#0f1824

#121921

#16191d

Accessibility

Aa White text on this color

17.97:1

Aa Black text on this color

1.17:1

White text reads better on this background (17.97:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#0e0e2a · ΔE 6.3

Deuteranopia

#0d0b29 · ΔE 6.8

Tritanopia

#052626 · ΔE 18

Achromatopsia

#171717 · ΔE 13.2

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

Code

CSS

background-color: #04172f;

Tailwind (arbitrary value)

bg-[#04172f]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Cornflower Blue #6495ed

Alice Blue #f0f8ff

Frequently asked questions

#04172f (#04172f) is rgb(4, 23, 47) in RGB.

No, #04172f 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.

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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 #04172f, or check how it holds up for accessibility.

Generate a palette → Check contrast