#151820

Color #151820

A muted very dark blue.

Closest named color Black #000000 · ΔE 10.3 Nearest Tailwind class zinc-900 #18181b · ΔE 3.4

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Conversions

HEX

#151820

RGB

rgb(21, 24, 32)

HSL

hsl(223.6, 20.8%, 10.4%)

HSV / HSB

hsv(223.6, 34.4%, 12.5%)

CMYK

cmyk(34.4%, 25%, 0%, 87.5%)

LAB

lab(8.28, 0.99, -6.04)

LCH

lch(8.28, 6.12, 279.31)

OKLCH

oklch(21%, 0.0166, 268.96)

HWB

hwb(223.6, 8.2%, 87.5%)

Harmony colors

Complementary

#201d15

Analogous

#151e20

#151820

#181520

Triadic

#151820

#201518

#182015

Split-complementary

#151820

#201815

#1e2015

Tetradic

#151820

#1d1520

#201d15

#182015

Square

#151820

#20151e

#201d15

#152018

Shades

Color #151820 mixed toward black.

#12141b

#0e1015

#0b0c10

#07080b

#040405

Tints

Color #151820 mixed toward white.

#333b4e

#515d7c

#7582a5

#a3acc3

#d1d5e1

Tones

Color #151820 mixed toward gray.

#16181f

#17191e

#18191d

#191a1c

#1a1a1b

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

#16161e · ΔE 1.9

Deuteranopia

#16161e · ΔE 1.9

Tritanopia

#151d1c · ΔE 8.1

Achromatopsia

#181818 · ΔE 5.5

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

Code

CSS

background-color: #151820;

Tailwind (arbitrary value)

bg-[#151820]

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

#151820 (#151820) is rgb(21, 24, 32) in RGB.

No, #151820 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.

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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 #151820, or check how it holds up for accessibility.

Generate a palette → Check contrast