#1f1f2b

Color #1f1f2b

A muted very dark blue.

Closest named color Black #000000 · ΔE 15.03 Nearest Tailwind class gray-900 #101828 · ΔE 4.6

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Conversions

HEX

#1f1f2b

RGB

rgb(31, 31, 43)

HSL

hsl(240, 16.2%, 14.5%)

HSV / HSB

hsv(240, 27.9%, 16.9%)

CMYK

cmyk(27.9%, 27.9%, 0%, 83.1%)

LAB

lab(12.26, 3.36, -8.01)

LCH

lch(12.26, 8.69, 292.76)

OKLCH

oklch(24.5%, 0.0227, 284.53)

HWB

hwb(240, 12.2%, 83.1%)

Harmony colors

Complementary

#2b2b1f

Analogous

#1f252b

#1f1f2b

#251f2b

Triadic

#1f1f2b

#2b1f1f

#1f2b1f

Split-complementary

#1f1f2b

#2b251f

#252b1f

Tetradic

#1f1f2b

#2b1f2b

#2b2b1f

#1f2b1f

Square

#1f1f2b

#2b1f25

#2b2b1f

#1f2b25

Shades

Color #1f1f2b mixed toward black.

#1a1a24

#15151d

#0f0f15

#0a0a0e

#050507

Tints

Color #1f1f2b mixed toward white.

#3d3d55

#5c5c7f

#8080a4

#ababc2

#d5d5e1

Tones

Color #1f1f2b mixed toward gray.

#20202a

#212129

#222228

#232327

#242426

Accessibility

Aa White text on this color

16.29:1

Aa Black text on this color

1.29:1

White text reads better on this background (16.29:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1f1f28 · ΔE 1.7

Deuteranopia

#1f1f28 · ΔE 1.7

Tritanopia

#1f2626 · ΔE 10.2

Achromatopsia

#202020 · ΔE 7.8

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

Code

CSS

background-color: #1f1f2b;

Tailwind (arbitrary value)

bg-[#1f1f2b]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#1f1f2b (#1f1f2b) is rgb(31, 31, 43) in RGB.

No, #1f1f2b 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 #1f1f2b, or check how it holds up for accessibility.

Generate a palette → Check contrast