#1b212f

Color #1b212f

A muted very dark blue.

Closest named color Black #000000 · ΔE 16.39 Nearest Tailwind class gray-900 #101828 · ΔE 3.1

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Conversions

HEX

#1b212f

RGB

rgb(27, 33, 47)

HSL

hsl(222, 27%, 14.5%)

HSV / HSB

hsv(222, 42.6%, 18.4%)

CMYK

cmyk(42.6%, 29.8%, 0%, 81.6%)

LAB

lab(12.77, 1.64, -10.15)

LCH

lch(12.77, 10.28, 279.18)

OKLCH

oklch(24.9%, 0.0282, 266.33)

HWB

hwb(222, 10.6%, 81.6%)

Harmony colors

Complementary

#2f291b

Analogous

#1b2b2f

#1b212f

#1f1b2f

Triadic

#1b212f

#2f1b21

#212f1b

Split-complementary

#1b212f

#2f1f1b

#2b2f1b

Tetradic

#1b212f

#291b2f

#2f291b

#212f1b

Square

#1b212f

#2f1b2b

#2f291b

#1b2f1f

Shades

Color #1b212f mixed toward black.

#161b27

#12161f

#0d1017

#090b10

#040508

Tints

Color #1b212f mixed toward white.

#36415d

#50628b

#7586af

#a3aeca

#d1d7e4

Tones

Color #1b212f mixed toward gray.

#1d222d

#1e222c

#20232a

#222428

#232427

Accessibility

Aa White text on this color

16.09:1

Aa Black text on this color

1.31:1

White text reads better on this background (16.09:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1e1e2c · ΔE 3.4

Deuteranopia

#1d1d2b · ΔE 3.5

Tritanopia

#1b2a29 · ΔE 12.3

Achromatopsia

#212121 · ΔE 8.5

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

Code

CSS

background-color: #1b212f;

Tailwind (arbitrary value)

bg-[#1b212f]

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

#1b212f (#1b212f) is rgb(27, 33, 47) in RGB.

No, #1b212f is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

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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 #1b212f, or check how it holds up for accessibility.

Generate a palette → Check contrast