#1f222f

Color #1f222f

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 15.99 Nearest Tailwind class gray-900 #101828 · ΔE 4

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Conversions

HEX

#1f222f

RGB

rgb(31, 34, 47)

HSL

hsl(228.8, 20.5%, 15.3%)

HSV / HSB

hsv(228.8, 34%, 18.4%)

CMYK

cmyk(34%, 27.7%, 0%, 81.6%)

LAB

lab(13.48, 2.42, -9.04)

LCH

lch(13.48, 9.36, 284.99)

OKLCH

oklch(25.5%, 0.025, 274.36)

HWB

hwb(228.8, 12.2%, 81.6%)

Harmony colors

Complementary

#2f2c1f

Analogous

#1f2a2f

#1f222f

#241f2f

Triadic

#1f222f

#2f1f22

#222f1f

Split-complementary

#1f222f

#2f241f

#2a2f1f

Tetradic

#1f222f

#2c1f2f

#2f2c1f

#222f1f

Square

#1f222f

#2f1f2a

#2f2c1f

#1f2f24

Shades

Color #1f222f mixed toward black.

#1a1c27

#15171f

#101118

#0a0b10

#050608

Tints

Color #1f222f mixed toward white.

#3c415a

#586186

#7d85a9

#a8aec6

#d4d6e2

Tones

Color #1f222f mixed toward gray.

#20232e

#22242c

#23252b

#24252a

#262628

Accessibility

Aa White text on this color

15.81:1

Aa Black text on this color

1.33:1

White text reads better on this background (15.81:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#20202c · ΔE 1.7

Deuteranopia

#20202c · ΔE 1.7

Tritanopia

#1f2a29 · ΔE 11.5

Achromatopsia

#232323 · ΔE 8

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

Code

CSS

background-color: #1f222f;

Tailwind (arbitrary value)

bg-[#1f222f]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Frequently asked questions

#1f222f (#1f222f) is rgb(31, 34, 47) in RGB.

No, #1f222f is not web-safe. The nearest web-safe colors are among its tones and shades below.

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Contrast Checker

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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 #1f222f, or check how it holds up for accessibility.

Generate a palette → Check contrast