#042b6a

Color #042b6a

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 16.24 Nearest Tailwind class blue-950 #162456 · ΔE 4.4

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

Conversions

HEX

#042b6a

RGB

rgb(4, 43, 106)

HSL

hsl(217.1, 92.7%, 21.6%)

HSV / HSB

hsv(217.1, 96.2%, 41.6%)

CMYK

cmyk(96.2%, 59.4%, 0%, 58.4%)

LAB

lab(19.2, 14.86, -40.23)

LCH

lch(19.2, 42.89, 290.27)

OKLCH

oklch(30.9%, 0.1182, 260.11)

HWB

hwb(217.1, 1.6%, 58.4%)

Harmony colors

Complementary

#6a4304

Analogous

#045e6a

#042b6a

#10046a

Triadic

#042b6a

#6a042b

#2b6a04

Split-complementary

#042b6a

#6a1004

#5e6a04

Tetradic

#042b6a

#43046a

#6a4304

#2b6a04

Square

#042b6a

#6a045e

#6a4304

#046a10

Shades

Color #042b6a mixed toward black.

#032458

#031d47

#021535

#010e23

#010712

Tints

Color #042b6a mixed toward white.

#0645aa

#095feb

#3e85f8

#7faefa

#bfd6fd

Tones

Color #042b6a mixed toward gray.

#0d2d62

#152f59

#1e3151

#263348

#2f3540

Accessibility

Aa White text on this color

13.47:1

Aa Black text on this color

1.56:1

White text reads better on this background (13.47:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1b1c5f · ΔE 6.5

Deuteranopia

#19165c · ΔE 8.1

Tritanopia

#085653 · ΔE 29.1

Achromatopsia

#2f2f2f · ΔE 22.2

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

Code

CSS

background-color: #042b6a;

Tailwind (arbitrary value)

bg-[#042b6a]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#042b6a (#042b6a) is rgb(4, 43, 106) in RGB.

No, #042b6a is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #042b6a, or check how it holds up for accessibility.

Generate a palette → Check contrast