#1f373b

Color #1f373b

A muted very dark cyan.

Closest named color Charcoal #36454f · ΔE 8.9 Nearest Tailwind class mist-700 #394447 · ΔE 6.8

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Conversions

HEX

#1f373b

RGB

rgb(31, 55, 59)

HSL

hsl(188.6, 31.1%, 17.6%)

HSV / HSB

hsv(188.6, 47.5%, 23.1%)

CMYK

cmyk(47.5%, 6.8%, 0%, 76.9%)

LAB

lab(21.35, -8.07, -5.44)

LCH

lch(21.35, 9.73, 213.98)

OKLCH

oklch(31.9%, 0.0307, 209.24)

HWB

hwb(188.6, 12.2%, 76.9%)

Harmony colors

Complementary

#3b231f

Analogous

#1f3b31

#1f373b

#1f293b

Triadic

#1f373b

#3b1f37

#373b1f

Split-complementary

#1f373b

#3b1f29

#3b311f

Tetradic

#1f373b

#231f3b

#3b231f

#373b1f

Square

#1f373b

#311f3b

#3b231f

#293b1f

Shades

Color #1f373b mixed toward black.

#1a2e31

#152527

#0f1b1d

#0a1214

#05090a

Tints

Color #1f373b mixed toward white.

#376269

#4f8c97

#75adb7

#a3c8cf

#d1e4e7

Tones

Color #1f373b mixed toward gray.

#213539

#243436

#263234

#283032

#2b2f2f

Accessibility

Aa White text on this color

12.59:1

Aa Black text on this color

1.67:1

White text reads better on this background (12.59:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2b2b3a · ΔE 15

Deuteranopia

#2a283a · ΔE 17.2

Tritanopia

#213939 · ΔE 2.6

Achromatopsia

#333333 · ΔE 10.2

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

Code

CSS

background-color: #1f373b;

Tailwind (arbitrary value)

bg-[#1f373b]

Related colors

Powder Blue #b0e0e6

Light Blue #add8e6

Deep Sky Blue #00bfff

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Aqua #00ffff

Frequently asked questions

#1f373b (#1f373b) is rgb(31, 55, 59) in RGB.

No, #1f373b is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #1f373b, or check how it holds up for accessibility.

Generate a palette → Check contrast