#00366b

Color #00366b

A vivid, highly saturated dark blue.

Closest named color Dark Slate Blue #483d8b · ΔE 21.9 Nearest Tailwind class sky-950 #052f4a · ΔE 6

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

Conversions

HEX

#00366b

RGB

rgb(0, 54, 107)

HSL

hsl(209.7, 100%, 21%)

HSV / HSB

hsv(209.7, 100%, 42%)

CMYK

cmyk(100%, 49.5%, 0%, 58%)

LAB

lab(22.65, 6.91, -35.28)

LCH

lch(22.65, 35.95, 281.08)

OKLCH

oklch(33.5%, 0.1058, 253.76)

HWB

hwb(209.7, 0%, 58%)

Harmony colors

Complementary

#6b3500

Analogous

#006b6b

#00366b

#00016b

Triadic

#00366b

#6b0036

#366b00

Split-complementary

#00366b

#6b0001

#6b6b00

Tetradic

#00366b

#35006b

#6b3500

#366b00

Square

#00366b

#6b006b

#6b3500

#016b00

Shades

Color #00366b mixed toward black.

#002d59

#002447

#001b36

#001224

#000912

Tints

Color #00366b mixed toward white.

#0058ae

#007af1

#369bff

#79bdff

#bcdeff

Tones

Color #00366b mixed toward gray.

#093662

#123659

#1b3650

#243647

#2d363e

Accessibility

Aa White text on this color

12.07:1

Aa Black text on this color

1.74:1

White text reads better on this background (12.07:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#222261 · ΔE 9.9

Deuteranopia

#1f1b5f · ΔE 11.6

Tritanopia

#065957 · ΔE 25.8

Achromatopsia

#363636 · ΔE 20

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

Code

CSS

background-color: #00366b;

Tailwind (arbitrary value)

bg-[#00366b]

Related colors

Dodger Blue #1e90ff

Light Slate Gray #778899

Slate Gray #708090

Alice Blue #f0f8ff

Steel Blue #4682b4

Light Steel Blue #b0c4de

Frequently asked questions

#00366b (#00366b) is rgb(0, 54, 107) in RGB.

No, #00366b 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 #00366b, or check how it holds up for accessibility.

Generate a palette → Check contrast