#1b2f37

Color #1b2f37

A muted very dark cyan.

Closest named color Charcoal #36454f · ΔE 10.51 Nearest Tailwind class cyan-950 #053345 · ΔE 5.1

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Conversions

HEX

#1b2f37

RGB

rgb(27, 47, 55)

HSL

hsl(197.1, 34.1%, 16.1%)

HSV / HSB

hsv(197.1, 50.9%, 21.6%)

CMYK

cmyk(50.9%, 14.5%, 0%, 78.4%)

LAB

lab(18.11, -5.43, -7.63)

LCH

lch(18.11, 9.36, 234.56)

OKLCH

oklch(29.2%, 0.0296, 225.27)

HWB

hwb(197.1, 10.6%, 78.4%)

Harmony colors

Complementary

#37231b

Analogous

#1b3731

#1b2f37

#1b2137

Triadic

#1b2f37

#371b2f

#2f371b

Split-complementary

#1b2f37

#371b21

#37311b

Tetradic

#1b2f37

#231b37

#37231b

#2f371b

Square

#1b2f37

#311b37

#37231b

#21371b

Shades

Color #1b2f37 mixed toward black.

#17272e

#121f25

#0e181c

#091012

#050809

Tints

Color #1b2f37 mixed toward white.

#335867

#4a8197

#70a4b9

#9fc2d0

#cfe1e8

Tones

Color #1b2f37 mixed toward gray.

#1d2e35

#202d32

#222c30

#242b2e

#272a2b

Accessibility

Aa White text on this color

13.92:1

Aa Black text on this color

1.51:1

White text reads better on this background (13.92:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#252535 · ΔE 12.8

Deuteranopia

#242235 · ΔE 14.9

Tritanopia

#1c3433 · ΔE 6.6

Achromatopsia

#2c2c2c · ΔE 8.9

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

Code

CSS

background-color: #1b2f37;

Tailwind (arbitrary value)

bg-[#1b2f37]

Related colors

Sky Blue #87ceeb

Deep Sky Blue #00bfff

Light Blue #add8e6

Light Sky Blue #87cefa

Charcoal #36454f

Steel Blue #4682b4

Frequently asked questions

#1b2f37 (#1b2f37) is rgb(27, 47, 55) in RGB.

No, #1b2f37 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 #1b2f37, or check how it holds up for accessibility.

Generate a palette → Check contrast