#042a65

Color #042a65

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 18.14 Nearest Tailwind class blue-950 #162456 · ΔE 3.9

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

Conversions

HEX

#042a65

RGB

rgb(4, 42, 101)

HSL

hsl(216.5, 92.4%, 20.6%)

HSV / HSB

hsv(216.5, 96%, 39.6%)

CMYK

cmyk(96%, 58.4%, 0%, 60.4%)

LAB

lab(18.46, 13.37, -38.17)

LCH

lch(18.46, 40.44, 289.3)

OKLCH

oklch(30.2%, 0.1122, 259.57)

HWB

hwb(216.5, 1.6%, 60.4%)

Harmony colors

Complementary

#653f04

Analogous

#045b65

#042a65

#0f0465

Triadic

#042a65

#65042a

#2a6504

Split-complementary

#042a65

#650f04

#5b6504

Tetradic

#042a65

#3f0465

#653f04

#2a6504

Square

#042a65

#65045b

#653f04

#04650f

Shades

Color #042a65 mixed toward black.

#032354

#031c43

#021533

#010e22

#010711

Tints

Color #042a65 mixed toward white.

#0745a6

#0960e7

#3c85f7

#7daefa

#bed6fc

Tones

Color #042a65 mixed toward gray.

#0c2c5d

#142e55

#1c2f4d

#243145

#2c333d

Accessibility

Aa White text on this color

13.78:1

Aa Black text on this color

1.52:1

White text reads better on this background (13.78:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1b1b5b · ΔE 6.8

Deuteranopia

#191658 · ΔE 8.1

Tritanopia

#085250 · ΔE 27.9

Achromatopsia

#2d2d2d · ΔE 21.6

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

Code

CSS

background-color: #042a65;

Tailwind (arbitrary value)

bg-[#042a65]

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

#042a65 (#042a65) is rgb(4, 42, 101) in RGB.

No, #042a65 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 #042a65, or check how it holds up for accessibility.

Generate a palette → Check contrast