#28403d

Color #28403d

A muted dark cyan.

Closest named color Dark Slate Gray #2f4f4f · ΔE 6.86 Nearest Tailwind class teal-950 #022f2e · ΔE 7.1

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Conversions

HEX

#28403d

RGB

rgb(40, 64, 61)

HSL

hsl(172.5, 23.1%, 20.4%)

HSV / HSB

hsv(172.5, 37.5%, 25.1%)

CMYK

cmyk(37.5%, 0%, 4.7%, 74.9%)

LAB

lab(25.12, -10.1, -1.13)

LCH

lch(25.12, 10.16, 186.38)

OKLCH

oklch(35.1%, 0.0304, 186.05)

HWB

hwb(172.5, 15.7%, 74.9%)

Harmony colors

Complementary

#40282b

Analogous

#284031

#28403d

#283740

Triadic

#28403d

#3d2840

#403d28

Split-complementary

#28403d

#402837

#403128

Tetradic

#28403d

#282b40

#40282b

#403d28

Square

#28403d

#312840

#40282b

#374028

Shades

Color #28403d mixed toward black.

#213533

#1b2b29

#14201f

#0d1514

#070b0a

Tints

Color #28403d mixed toward white.

#426a65

#5c938c

#82b1ab

#accbc7

#d5e5e3

Tones

Color #28403d mixed toward gray.

#2a3e3c

#2c3c3a

#2e3a39

#303837

#323636

Accessibility

Aa White text on this color

11.11:1

Aa Black text on this color

1.89:1

White text reads better on this background (11.11:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#34343e · ΔE 15.3

Deuteranopia

#32313e · ΔE 17.1

Tritanopia

#2a3e3e · ΔE 2.5

Achromatopsia

#3c3c3c · ΔE 11.3

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

Code

CSS

background-color: #28403d;

Tailwind (arbitrary value)

bg-[#28403d]

Related colors

Turquoise #40e0d0

Light Sea Green #20b2aa

Medium Turquoise #48d1cc

Aqua #00ffff

Azure #f0ffff

Dark Cyan #008b8b

Frequently asked questions

#28403d (#28403d) is rgb(40, 64, 61) in RGB.

No, #28403d 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 #28403d, or check how it holds up for accessibility.

Generate a palette → Check contrast