#1f2133

Color #1f2133

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 17.41 Nearest Tailwind class slate-900 #0f172b · ΔE 4

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Conversions

HEX

#1f2133

RGB

rgb(31, 33, 51)

HSL

hsl(234, 24.4%, 16.1%)

HSV / HSB

hsv(234, 39.2%, 20%)

CMYK

cmyk(39.2%, 35.3%, 0%, 80%)

LAB

lab(13.34, 4.46, -12.11)

LCH

lch(13.34, 12.91, 290.22)

OKLCH

oklch(25.5%, 0.0341, 278.77)

HWB

hwb(234, 12.2%, 80%)

Harmony colors

Complementary

#33311f

Analogous

#1f2b33

#1f2133

#271f33

Triadic

#1f2133

#331f21

#21331f

Split-complementary

#1f2133

#33271f

#2b331f

Tetradic

#1f2133

#311f33

#33311f

#21331f

Square

#1f2133

#331f2b

#33311f

#1f3327

Shades

Color #1f2133 mixed toward black.

#1a1c2b

#151622

#10111a

#0a0b11

#050609

Tints

Color #1f2133 mixed toward white.

#3a3e5f

#555a8c

#7a7fae

#a6aac9

#d3d4e4

Tones

Color #1f2133 mixed toward gray.

#212231

#222430

#24252e

#26262c

#27282b

Accessibility

Aa White text on this color

15.87:1

Aa Black text on this color

1.32:1

White text reads better on this background (15.87:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#20202f · ΔE 1.6

Deuteranopia

#20202e · ΔE 2

Tritanopia

#1f2c2b · ΔE 14.9

Achromatopsia

#222222 · ΔE 10.5

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

Code

CSS

background-color: #1f2133;

Tailwind (arbitrary value)

bg-[#1f2133]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#1f2133 (#1f2133) is rgb(31, 33, 51) in RGB.

No, #1f2133 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 #1f2133, or check how it holds up for accessibility.

Generate a palette → Check contrast