#042b3f

Color #042b3f

A vivid, highly saturated very dark blue.

Closest named color Charcoal #36454f · ΔE 15 Nearest Tailwind class sky-950 #052f4a · ΔE 3.4

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

Conversions

HEX

#042b3f

RGB

rgb(4, 43, 63)

HSL

hsl(200.3, 88.1%, 13.1%)

HSV / HSB

hsv(200.3, 93.7%, 24.7%)

CMYK

cmyk(93.7%, 31.7%, 0%, 75.3%)

LAB

lab(16.07, -4.67, -16.4)

LCH

lch(16.07, 17.05, 254.11)

OKLCH

oklch(27.4%, 0.0555, 236.68)

HWB

hwb(200.3, 1.6%, 75.3%)

Harmony colors

Complementary

#3f1804

Analogous

#043f35

#042b3f

#040d3f

Triadic

#042b3f

#3f042b

#2b3f04

Split-complementary

#042b3f

#3f040d

#3f3504

Tetradic

#042b3f

#18043f

#3f1804

#2b3f04

Square

#042b3f

#35043f

#3f1804

#0d3f04

Shades

Color #042b3f mixed toward black.

#032434

#031d2a

#02151f

#010e15

#01070a

Tints

Color #042b3f mixed toward white.

#085a84

#0d8aca

#2fb0f2

#74caf6

#bae5fb

Tones

Color #042b3f mixed toward gray.

#09293a

#0e2835

#132630

#18252b

#1d2326

Accessibility

Aa White text on this color

14.76:1

Aa Black text on this color

1.42:1

White text reads better on this background (14.76:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1b1c3b · ΔE 14.7

Deuteranopia

#19163a · ΔE 16.1

Tritanopia

#083737 · ΔE 13.3

Achromatopsia

#282828 · ΔE 12.7

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

Code

CSS

background-color: #042b3f;

Tailwind (arbitrary value)

bg-[#042b3f]

Related colors

Light Sky Blue #87cefa

Sky Blue #87ceeb

Charcoal #36454f

Deep Sky Blue #00bfff

Light Blue #add8e6

Steel Blue #4682b4

Frequently asked questions

#042b3f (#042b3f) is rgb(4, 43, 63) in RGB.

No, #042b3f 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 #042b3f, or check how it holds up for accessibility.

Generate a palette → Check contrast