#1f2131

Color #1f2131

A muted very dark blue.

Closest named color Charcoal #36454f · ΔE 16.97 Nearest Tailwind class gray-900 #101828 · ΔE 4.1

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#1f2131

RGB

rgb(31, 33, 49)

HSL

hsl(233.3, 22.5%, 15.7%)

HSV / HSB

hsv(233.3, 36.7%, 19.2%)

CMYK

cmyk(36.7%, 32.7%, 0%, 80.8%)

LAB

lab(13.23, 3.8, -10.84)

LCH

lch(13.23, 11.49, 289.32)

OKLCH

oklch(25.3%, 0.0303, 278.53)

HWB

hwb(233.3, 12.2%, 80.8%)

Harmony colors

Complementary

#312f1f

Analogous

#1f2a31

#1f2131

#261f31

Triadic

#1f2131

#311f21

#21311f

Split-complementary

#1f2131

#31261f

#2a311f

Tetradic

#1f2131

#2f1f31

#312f1f

#21311f

Square

#1f2131

#311f2a

#312f1f

#1f3126

Shades

Color #1f2131 mixed toward black.

#1a1c29

#151621

#101119

#0a0b10

#050608

Tints

Color #1f2131 mixed toward white.

#3b3f5d

#575c89

#7b81ac

#a7abc7

#d3d5e3

Tones

Color #1f2131 mixed toward gray.

#212230

#22232e

#24252d

#25262b

#27272a

Accessibility

Aa White text on this color

15.91:1

Aa Black text on this color

1.32:1

White text reads better on this background (15.91:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#20202e · ΔE 1.3

Deuteranopia

#20202d · ΔE 1.6

Tritanopia

#1f2b2a · ΔE 13.7

Achromatopsia

#222222 · ΔE 9.6

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

Code

CSS

background-color: #1f2131;

Tailwind (arbitrary value)

bg-[#1f2131]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#1f2131 (#1f2131) is rgb(31, 33, 49) in RGB.

No, #1f2131 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #1f2131, or check how it holds up for accessibility.

Generate a palette → Check contrast