#151b1b

Color #151b1b

A nearly neutral, gray-leaning very dark cyan.

Closest named color Black #000000 · ΔE 9.64 Nearest Tailwind class mist-900 #161b1d · ΔE 1.8

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Conversions

HEX

#151b1b

RGB

rgb(21, 27, 27)

HSL

hsl(180, 12.5%, 9.4%)

HSV / HSB

hsv(180, 22.2%, 10.6%)

CMYK

cmyk(22.2%, 0%, 0%, 89.4%)

LAB

lab(9.18, -2.78, -0.93)

LCH

lch(9.18, 2.93, 198.5)

OKLCH

oklch(21.6%, 0.009, 196.21)

HWB

hwb(180, 8.2%, 89.4%)

Harmony colors

Complementary

#1b1515

Analogous

#151b18

#151b1b

#15181b

Triadic

#151b1b

#1b151b

#1b1b15

Split-complementary

#151b1b

#1b1518

#1b1815

Tetradic

#151b1b

#15151b

#1b1515

#1b1b15

Square

#151b1b

#18151b

#1b1515

#181b15

Shades

Color #151b1b mixed toward black.

#111616

#0e1212

#0a0d0d

#070909

#030404

Tints

Color #151b1b mixed toward white.

#374646

#587272

#7d9a9a

#a8bcbc

#d4dddd

Tones

Color #151b1b mixed toward gray.

#151a1a

#161a1a

#161919

#171919

#171818

Accessibility

Aa White text on this color

17.43:1

Aa Black text on this color

1.2:1

White text reads better on this background (17.43:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#18181b · ΔE 5.1

Deuteranopia

#17171b · ΔE 5.7

Tritanopia

#151b1b · ΔE 0

Achromatopsia

#1a1a1a · ΔE 3.9

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

Code

CSS

background-color: #151b1b;

Tailwind (arbitrary value)

bg-[#151b1b]

Related colors

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Dark Slate Gray #2f4f4f

Light Cyan #e0ffff

Pale Turquoise #afeeee

Frequently asked questions

#151b1b (#151b1b) is rgb(21, 27, 27) in RGB.

No, #151b1b 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 #151b1b, or check how it holds up for accessibility.

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