#1b4d57

Color #1b4d57

A moderately saturated dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 7.37 Nearest Tailwind class cyan-900 #104e64 · ΔE 5.4

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Conversions

HEX

#1b4d57

RGB

rgb(27, 77, 87)

HSL

hsl(190, 52.6%, 22.4%)

HSV / HSB

hsv(190, 69%, 34.1%)

CMYK

cmyk(69%, 11.5%, 0%, 65.9%)

LAB

lab(29.98, -13.05, -10.85)

LCH

lch(29.98, 16.97, 219.74)

OKLCH

oklch(39.1%, 0.0551, 213.14)

HWB

hwb(190, 10.6%, 65.9%)

Harmony colors

Complementary

#57251b

Analogous

#1b5743

#1b4d57

#1b2f57

Triadic

#1b4d57

#571b4d

#4d571b

Split-complementary

#1b4d57

#571b2f

#57431b

Tetradic

#1b4d57

#251b57

#57251b

#4d571b

Square

#1b4d57

#431b57

#57251b

#2f571b

Shades

Color #1b4d57 mixed toward black.

#174049

#12333a

#0e272c

#091a1d

#050d0f

Tints

Color #1b4d57 mixed toward white.

#2b7a89

#3aa6bc

#68bfd0

#9ad4e0

#cdeaef

Tones

Color #1b4d57 mixed toward gray.

#204a52

#25464d

#2a4348

#2f4043

#343c3e

Accessibility

Aa White text on this color

9.35:1

Aa Black text on this color

2.25:1

White text reads better on this background (9.35:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#373855 · ΔE 21.2

Deuteranopia

#343054 · ΔE 23.5

Tritanopia

#205352 · ΔE 6.2

Achromatopsia

#474747 · ΔE 14.8

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

Code

CSS

background-color: #1b4d57;

Tailwind (arbitrary value)

bg-[#1b4d57]

Related colors

Powder Blue #b0e0e6

Light Blue #add8e6

Deep Sky Blue #00bfff

Sky Blue #87ceeb

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Frequently asked questions

#1b4d57 (#1b4d57) is rgb(27, 77, 87) in RGB.

No, #1b4d57 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 #1b4d57, or check how it holds up for accessibility.

Generate a palette → Check contrast