#0b182d

Color #0b182d

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 18.07 Nearest Tailwind class slate-900 #0f172b · ΔE 1.7

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

Conversions

HEX

#0b182d

RGB

rgb(11, 24, 45)

HSL

hsl(217.1, 60.7%, 11%)

HSV / HSB

hsv(217.1, 75.6%, 17.6%)

CMYK

cmyk(75.6%, 46.7%, 0%, 82.4%)

LAB

lab(8.25, 2.72, -15.85)

LCH

lch(8.25, 16.08, 279.74)

OKLCH

oklch(21%, 0.0458, 259.55)

HWB

hwb(217.1, 4.3%, 82.4%)

Harmony colors

Complementary

#2d200b

Analogous

#0b292d

#0b182d

#0f0b2d

Triadic

#0b182d

#2d0b18

#182d0b

Split-complementary

#0b182d

#2d0f0b

#292d0b

Tetradic

#0b182d

#200b2d

#2d200b

#182d0b

Square

#0b182d

#2d0b29

#2d200b

#0b2d0f

Shades

Color #0b182d mixed toward black.

#091426

#07101e

#060c17

#04080f

#020408

Tints

Color #0b182d mixed toward white.

#1a386a

#2959a7

#497dd2

#85a8e1

#c2d4f0

Tones

Color #0b182d mixed toward gray.

#0e192a

#111927

#141a25

#161b22

#191b1f

Accessibility

Aa White text on this color

17.75:1

Aa Black text on this color

1.18:1

White text reads better on this background (17.75:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#121229 · ΔE 5.5

Deuteranopia

#111028 · ΔE 5.8

Tritanopia

#0c2525 · ΔE 16.4

Achromatopsia

#181818 · ΔE 12

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

Code

CSS

background-color: #0b182d;

Tailwind (arbitrary value)

bg-[#0b182d]

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

#0b182d (#0b182d) is rgb(11, 24, 45) in RGB.

No, #0b182d 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 #0b182d, or check how it holds up for accessibility.

Generate a palette → Check contrast