#428b7d

Color #428b7d

A muted medium green.

Closest named color Dark Cyan #008b8b · ΔE 10.45 Nearest Tailwind class teal-600 #009689 · ΔE 5.3

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#428b7d

RGB

rgb(66, 139, 125)

HSL

hsl(168.5, 35.6%, 40.2%)

HSV / HSB

hsv(168.5, 52.5%, 54.5%)

CMYK

cmyk(52.5%, 0%, 10.1%, 45.5%)

LAB

lab(53.06, -26.41, 0.53)

LCH

lch(53.06, 26.42, 178.85)

OKLCH

oklch(58.6%, 0.0766, 179.25)

HWB

hwb(168.5, 25.9%, 45.5%)

Harmony colors

Complementary

#8b4250

Analogous

#428b59

#428b7d

#42748b

Triadic

#428b7d

#7d428b

#8b7d42

Split-complementary

#428b7d

#8b4274

#8b5942

Tetradic

#428b7d

#42508b

#8b4250

#8b7d42

Square

#428b7d

#59428b

#8b4250

#748b42

Shades

Color #428b7d mixed toward black.

#377468

#2c5d53

#21463f

#162e2a

#0b1715

Tints

Color #428b7d mixed toward white.

#53ad9c

#75beb0

#98cec3

#baded7

#ddefeb

Tones

Color #428b7d mixed toward gray.

#488579

#4e7f76

#547972

#5a736e

#606d6a

Accessibility

Aa White text on this color

4.02:1

Aa Black text on this color

5.22:1

Black text reads better on this background (5.22:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#696a81 · ΔE 27.4

Deuteranopia

#655f81 · ΔE 31.5

Tritanopia

#488384 · ΔE 7.1

Achromatopsia

#7f7f7f · ΔE 20.5

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

Code

CSS

background-color: #428b7d;

Tailwind (arbitrary value)

bg-[#428b7d]

Related colors

Turquoise #40e0d0

Light Sea Green #20b2aa

Aquamarine #7fffd4

Medium Aquamarine #66cdaa

Medium Turquoise #48d1cc

Aqua #00ffff

Frequently asked questions

#428b7d (#428b7d) is rgb(66, 139, 125) in RGB.

No, #428b7d 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 #428b7d, or check how it holds up for accessibility.

Generate a palette → Check contrast