#15212b

Color #15212b

A muted very dark blue.

Closest named color Black #000000 · ΔE 14.81 Nearest Tailwind class gray-800 #1e2939 · ΔE 4.7

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Conversions

HEX

#15212b

RGB

rgb(21, 33, 43)

HSL

hsl(207.3, 34.4%, 12.5%)

HSV / HSB

hsv(207.3, 51.2%, 16.9%)

CMYK

cmyk(51.2%, 23.3%, 0%, 83.1%)

LAB

lab(12.1, -1.88, -8.33)

LCH

lch(12.1, 8.54, 257.28)

OKLCH

oklch(24.1%, 0.0256, 244.33)

HWB

hwb(207.3, 8.2%, 83.1%)

Harmony colors

Complementary

#2b1f15

Analogous

#152b2a

#15212b

#15162b

Triadic

#15212b

#2b1521

#212b15

Split-complementary

#15212b

#2b1516

#2b2a15

Tetradic

#15212b

#1f152b

#2b1f15

#212b15

Square

#15212b

#2a152b

#2b1f15

#162b15

Shades

Color #15212b mixed toward black.

#111b24

#0e161d

#0a1015

#070b0e

#030507

Tints

Color #15212b mixed toward white.

#2d475d

#466e8f

#6993b6

#9bb7ce

#cddbe7

Tones

Color #15212b mixed toward gray.

#172129

#192127

#1a2025

#1c2024

#1e2022

Accessibility

Aa White text on this color

16.35:1

Aa Black text on this color

1.28:1

White text reads better on this background (16.35:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1b1b29 · ΔE 8.2

Deuteranopia

#1a1928 · ΔE 9.2

Tritanopia

#162727 · ΔE 8.2

Achromatopsia

#202020 · ΔE 7.3

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

Code

CSS

background-color: #15212b;

Tailwind (arbitrary value)

bg-[#15212b]

Related colors

Steel Blue #4682b4

Alice Blue #f0f8ff

Dodger Blue #1e90ff

Light Slate Gray #778899

Slate Gray #708090

Charcoal #36454f

Frequently asked questions

#15212b (#15212b) is rgb(21, 33, 43) in RGB.

No, #15212b 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 #15212b, or check how it holds up for accessibility.

Generate a palette → Check contrast