#1b2121

Color #1b2121

A nearly neutral, gray-leaning very dark cyan.

Closest named color Black #000000 · ΔE 12.49 Nearest Tailwind class mist-900 #161b1d · ΔE 2.5

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Conversions

HEX

#1b2121

RGB

rgb(27, 33, 33)

HSL

hsl(180, 10%, 11.8%)

HSV / HSB

hsv(180, 18.2%, 12.9%)

CMYK

cmyk(18.2%, 0%, 0%, 87.1%)

LAB

lab(12.16, -2.72, -0.92)

LCH

lch(12.16, 2.87, 198.69)

OKLCH

oklch(24.2%, 0.0088, 196.57)

HWB

hwb(180, 10.6%, 87.1%)

Harmony colors

Complementary

#211b1b

Analogous

#1b211e

#1b2121

#1b1e21

Triadic

#1b2121

#211b21

#21211b

Split-complementary

#1b2121

#211b1e

#211e1b

Tetradic

#1b2121

#1b1b21

#211b1b

#21211b

Square

#1b2121

#1e1b21

#211b1b

#1e211b

Shades

Color #1b2121 mixed toward black.

#171c1c

#121616

#0e1111

#090b0b

#050606

Tints

Color #1b2121 mixed toward white.

#3d4a4a

#5f7474

#839a9a

#adbcbc

#d6dddd

Tones

Color #1b2121 mixed toward gray.

#1c2121

#1c2020

#1d2020

#1d1f1f

#1e1f1f

Accessibility

Aa White text on this color

16.33:1

Aa Black text on this color

1.29:1

White text reads better on this background (16.33:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1e1e21 · ΔE 5

Deuteranopia

#1d1d21 · ΔE 5.5

Tritanopia

#1b2121 · ΔE 0

Achromatopsia

#202020 · ΔE 3.8

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

Code

CSS

background-color: #1b2121;

Tailwind (arbitrary value)

bg-[#1b2121]

Related colors

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Dark Slate Gray #2f4f4f

Light Cyan #e0ffff

Pale Turquoise #afeeee

Frequently asked questions

#1b2121 (#1b2121) is rgb(27, 33, 33) in RGB.

No, #1b2121 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 #1b2121, or check how it holds up for accessibility.

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