#1d1f31

Color #1d1f31

A muted very dark blue.

Closest named color Black #000000 · ΔE 17.95 Nearest Tailwind class slate-900 #0f172b · ΔE 3.6

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Conversions

HEX

#1d1f31

RGB

rgb(29, 31, 49)

HSL

hsl(234, 25.6%, 15.3%)

HSV / HSB

hsv(234, 40.8%, 19.2%)

CMYK

cmyk(40.8%, 36.7%, 0%, 80.8%)

LAB

lab(12.37, 4.53, -12.19)

LCH

lch(12.37, 13, 290.39)

OKLCH

oklch(24.6%, 0.0343, 278.72)

HWB

hwb(234, 11.4%, 80.8%)

Harmony colors

Complementary

#312f1d

Analogous

#1d2931

#1d1f31

#251d31

Triadic

#1d1f31

#311d1f

#1f311d

Split-complementary

#1d1f31

#31251d

#29311d

Tetradic

#1d1f31

#2f1d31

#312f1d

#1f311d

Square

#1d1f31

#311d29

#312f1d

#1d3125

Shades

Color #1d1f31 mixed toward black.

#181a29

#131521

#0f1019

#0a0a10

#050508

Tints

Color #1d1f31 mixed toward white.

#383c5e

#53588b

#777daf

#a5a8c9

#d2d4e4

Tones

Color #1d1f31 mixed toward gray.

#1f202f

#20222e

#22232c

#24242a

#252629

Accessibility

Aa White text on this color

16.25:1

Aa Black text on this color

1.29:1

White text reads better on this background (16.25:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1e1e2d · ΔE 1.6

Deuteranopia

#1e1e2c · ΔE 2

Tritanopia

#1d2a29 · ΔE 15

Achromatopsia

#202020 · ΔE 10.6

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

Code

CSS

background-color: #1d1f31;

Tailwind (arbitrary value)

bg-[#1d1f31]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#1d1f31 (#1d1f31) is rgb(29, 31, 49) in RGB.

No, #1d1f31 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 #1d1f31, or check how it holds up for accessibility.

Generate a palette → Check contrast