#0057a4

Color #0057a4

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 19.13 Nearest Tailwind class sky-800 #00598a · ΔE 4.7

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

Conversions

HEX

#0057a4

RGB

rgb(0, 87, 164)

HSL

hsl(208.2, 100%, 32.2%)

HSV / HSB

hsv(208.2, 100%, 64.3%)

CMYK

cmyk(100%, 47%, 0%, 35.7%)

LAB

lab(36.92, 8.77, -47.58)

LCH

lch(36.92, 48.38, 280.44)

OKLCH

oklch(45.8%, 0.1429, 253.37)

HWB

hwb(208.2, 0%, 35.7%)

Harmony colors

Complementary

#a44d00

Analogous

#00a49f

#0057a4

#0005a4

Triadic

#0057a4

#a40057

#57a400

Split-complementary

#0057a4

#a40005

#a49f00

Tetradic

#0057a4

#4d00a4

#a44d00

#57a400

Square

#0057a4

#9f00a4

#a44d00

#05a400

Shades

Color #0057a4 mixed toward black.

#004989

#003a6d

#002c52

#001d37

#000f1b

Tints

Color #0057a4 mixed toward white.

#0076de

#1893ff

#52aeff

#8cc9ff

#c5e4ff

Tones

Color #0057a4 mixed toward gray.

#0e5697

#1b5589

#29557b

#37546d

#445360

Accessibility

Aa White text on this color

7.24:1

Aa Black text on this color

2.9:1

White text reads better on this background (7.24:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#393a96 · ΔE 13.2

Deuteranopia

#352f92 · ΔE 15.9

Tritanopia

#0f8986 · ΔE 31.1

Achromatopsia

#575757 · ΔE 23.2

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

Code

CSS

background-color: #0057a4;

Tailwind (arbitrary value)

bg-[#0057a4]

Related colors

Alice Blue #f0f8ff

Steel Blue #4682b4

Dodger Blue #1e90ff

Light Slate Gray #778899

Slate Gray #708090

Charcoal #36454f

Frequently asked questions

#0057a4 (#0057a4) is rgb(0, 87, 164) in RGB.

No, #0057a4 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 #0057a4, or check how it holds up for accessibility.

Generate a palette → Check contrast