#0057b4

Color #0057b4

A vivid, highly saturated dark blue.

Closest named color Royal Blue #4169e1 · ΔE 17.72 Nearest Tailwind class sky-800 #00598a · ΔE 6.6

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

Conversions

HEX

#0057b4

RGB

rgb(0, 87, 180)

HSL

hsl(211, 100%, 35.3%)

HSV / HSB

hsv(211, 100%, 70.6%)

CMYK

cmyk(100%, 51.7%, 0%, 29.4%)

LAB

lab(38.04, 15.39, -55.26)

LCH

lch(38.04, 57.36, 285.56)

OKLCH

oklch(47.1%, 0.164, 256.53)

HWB

hwb(211, 0%, 29.4%)

Harmony colors

Complementary

#b45d00

Analogous

#00b1b4

#0057b4

#0300b4

Triadic

#0057b4

#b40057

#57b400

Split-complementary

#0057b4

#b40300

#b1b400

Tetradic

#0057b4

#5d00b4

#b45d00

#57b400

Square

#0057b4

#b400b1

#b45d00

#00b403

Shades

Color #0057b4 mixed toward black.

#004996

#003a78

#002c5a

#001d3c

#000f1e

Tints

Color #0057b4 mixed toward white.

#0072eb

#238dff

#5aaaff

#91c6ff

#c8e3ff

Tones

Color #0057b4 mixed toward gray.

#0f58a5

#1e5896

#2d5987

#3c5978

#4b5a69

Accessibility

Aa White text on this color

6.95:1

Aa Black text on this color

3.02:1

White text reads better on this background (6.95:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#393aa4 · ΔE 12

Deuteranopia

#352f9f · ΔE 14.8

Tritanopia

#0f9591 · ΔE 35.4

Achromatopsia

#5a5a5a · ΔE 25.1

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

Code

CSS

background-color: #0057b4;

Tailwind (arbitrary value)

bg-[#0057b4]

Related colors

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Light Steel Blue #b0c4de

Alice Blue #f0f8ff

Steel Blue #4682b4

Frequently asked questions

#0057b4 (#0057b4) is rgb(0, 87, 180) in RGB.

No, #0057b4 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 #0057b4, or check how it holds up for accessibility.

Generate a palette → Check contrast