#12182a

Color #12182a

A moderately saturated very dark blue.

Closest named color Black #000000 · ΔE 16.04 Nearest Tailwind class slate-900 #0f172b · ΔE 1.1

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Conversions

HEX

#12182a

RGB

rgb(18, 24, 42)

HSL

hsl(225, 40%, 11.8%)

HSV / HSB

hsv(225, 57.1%, 16.5%)

CMYK

cmyk(57.1%, 42.9%, 0%, 83.5%)

LAB

lab(8.56, 3.48, -13.11)

LCH

lch(8.56, 13.56, 284.87)

OKLCH

oklch(21.3%, 0.0369, 269.07)

HWB

hwb(225, 7.1%, 83.5%)

Harmony colors

Complementary

#2a2412

Analogous

#12242a

#12182a

#18122a

Triadic

#12182a

#2a1218

#182a12

Split-complementary

#12182a

#2a1812

#242a12

Tetradic

#12182a

#24122a

#2a2412

#182a12

Square

#12182a

#2a1224

#2a2412

#122a18

Shades

Color #12182a mixed toward black.

#0f1423

#0c101c

#090c15

#06080e

#030407

Tints

Color #12182a mixed toward white.

#29365f

#3f5493

#6278bc

#96a5d2

#cbd2e9

Tones

Color #12182a mixed toward gray.

#141928

#161a26

#181b24

#1a1c22

#1c1d20

Accessibility

Aa White text on this color

17.65:1

Aa Black text on this color

1.19:1

White text reads better on this background (17.65:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#151526 · ΔE 2.9

Deuteranopia

#141426 · ΔE 3

Tritanopia

#122323 · ΔE 14.9

Achromatopsia

#191919 · ΔE 10.7

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

Code

CSS

background-color: #12182a;

Tailwind (arbitrary value)

bg-[#12182a]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#12182a (#12182a) is rgb(18, 24, 42) in RGB.

No, #12182a 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.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #12182a, or check how it holds up for accessibility.

Generate a palette → Check contrast