#121621

Color #121621

A muted very dark blue.

Closest named color Black #000000 · ΔE 11.16 Nearest Tailwind class gray-900 #101828 · ΔE 2.7

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Conversions

HEX

#121621

RGB

rgb(18, 22, 33)

HSL

hsl(224, 29.4%, 10%)

HSV / HSB

hsv(224, 45.5%, 12.9%)

CMYK

cmyk(45.5%, 33.3%, 0%, 87.1%)

LAB

lab(7.34, 1.59, -8.26)

LCH

lch(7.34, 8.41, 280.9)

OKLCH

oklch(20.2%, 0.023, 268.75)

HWB

hwb(224, 7.1%, 87.1%)

Harmony colors

Complementary

#211d12

Analogous

#121d21

#121621

#161221

Triadic

#121621

#211216

#162112

Split-complementary

#121621

#211612

#1d2112

Tetradic

#121621

#1d1221

#211d12

#162112

Square

#121621

#21121d

#211d12

#122116

Shades

Color #121621 mixed toward black.

#0f121b

#0c0f16

#090b10

#06070b

#030405

Tints

Color #121621 mixed toward white.

#2d3752

#485884

#6b7dae

#9ca8c9

#ced4e4

Tones

Color #121621 mixed toward gray.

#131720

#15171e

#16181d

#17181c

#18191b

Accessibility

Aa White text on this color

18.07:1

Aa Black text on this color

1.16:1

White text reads better on this background (18.07:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#14141f · ΔE 2.2

Deuteranopia

#14131e · ΔE 2.7

Tritanopia

#121d1c · ΔE 10.6

Achromatopsia

#161616 · ΔE 7.2

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

Code

CSS

background-color: #121621;

Tailwind (arbitrary value)

bg-[#121621]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#121621 (#121621) is rgb(18, 22, 33) in RGB.

No, #121621 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 #121621, or check how it holds up for accessibility.

Generate a palette → Check contrast