#2f5159

Color #2f5159

A muted dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 5.26 Nearest Tailwind class cyan-900 #104e64 · ΔE 6.1

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Conversions

HEX

#2f5159

RGB

rgb(47, 81, 89)

HSL

hsl(191.4, 30.9%, 26.7%)

HSV / HSB

hsv(191.4, 47.2%, 34.9%)

CMYK

cmyk(47.2%, 9%, 0%, 65.1%)

LAB

lab(32.28, -9.94, -8.56)

LCH

lch(32.28, 13.12, 220.73)

OKLCH

oklch(41.2%, 0.0417, 214.45)

HWB

hwb(191.4, 18.4%, 65.1%)

Harmony colors

Complementary

#59372f

Analogous

#2f594c

#2f5159

#2f3c59

Triadic

#2f5159

#592f51

#51592f

Split-complementary

#2f5159

#592f3c

#594c2f

Tetradic

#2f5159

#372f59

#59372f

#51592f

Square

#2f5159

#4c2f59

#59372f

#3c592f

Shades

Color #2f5159 mixed toward black.

#27444a

#1f363b

#18292d

#101b1e

#080e0f

Tints

Color #2f5159 mixed toward white.

#457682

#5c9aa9

#85b3be

#adcdd4

#d6e6e9

Tones

Color #2f5159 mixed toward gray.

#334f56

#364d52

#3a4b4f

#3d484b

#414648

Accessibility

Aa White text on this color

8.6:1

Aa Black text on this color

2.44:1

White text reads better on this background (8.6:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#404157 · ΔE 17.6

Deuteranopia

#3e3c57 · ΔE 20.1

Tritanopia

#315655 · ΔE 5.4

Achromatopsia

#4c4c4c · ΔE 12.4

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

Code

CSS

background-color: #2f5159;

Tailwind (arbitrary value)

bg-[#2f5159]

Related colors

Light Blue #add8e6

Deep Sky Blue #00bfff

Powder Blue #b0e0e6

Sky Blue #87ceeb

Cadet Blue #5f9ea0

Dark Turquoise #00ced1

Frequently asked questions

#2f5159 (#2f5159) is rgb(47, 81, 89) in RGB.

No, #2f5159 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 #2f5159, or check how it holds up for accessibility.

Generate a palette → Check contrast