#042e8b

Color #042e8b

A vivid, highly saturated dark blue.

Closest named color Midnight Blue #191970 · ΔE 10.2 Nearest Tailwind class blue-900 #1c398e · ΔE 3.3

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

Conversions

HEX

#042e8b

RGB

rgb(4, 46, 139)

HSL

hsl(221.3, 94.4%, 28%)

HSV / HSB

hsv(221.3, 97.1%, 54.5%)

CMYK

cmyk(97.1%, 66.9%, 0%, 45.5%)

LAB

lab(23.15, 26.81, -54.75)

LCH

lch(23.15, 60.96, 296.09)

OKLCH

oklch(34.8%, 0.1601, 262.72)

HWB

hwb(221.3, 1.6%, 45.5%)

Harmony colors

Complementary

#8b6104

Analogous

#04718b

#042e8b

#1d048b

Triadic

#042e8b

#8b042e

#2e8b04

Split-complementary

#042e8b

#8b1d04

#718b04

Tetradic

#042e8b

#61048b

#8b6104

#2e8b04

Square

#042e8b

#8b0471

#8b6104

#048b1d

Shades

Color #042e8b mixed toward black.

#032674

#031f5d

#021745

#010f2e

#010817

Tints

Color #042e8b mixed toward white.

#0642c6

#1159f8

#4d83fa

#88acfc

#c4d6fd

Tones

Color #042e8b mixed toward gray.

#0f3280

#1a3674

#263b69

#313f5e

#3c4353

Accessibility

Aa White text on this color

11.87:1

Aa Black text on this color

1.77:1

White text reads better on this background (11.87:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1d1e7c · ΔE 5.6

Deuteranopia

#1b1878 · ΔE 7

Tritanopia

#086f6c · ΔE 35.1

Achromatopsia

#373737 · ΔE 25.8

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

Code

CSS

background-color: #042e8b;

Tailwind (arbitrary value)

bg-[#042e8b]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#042e8b (#042e8b) is rgb(4, 46, 139) in RGB.

No, #042e8b 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 #042e8b, or check how it holds up for accessibility.

Generate a palette → Check contrast