#428caf

Color #428caf

A moderately saturated medium cyan.

Closest named color Steel Blue #4682b4 · ΔE 10.97 Nearest Tailwind class cyan-600 #0092b8 · ΔE 4

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Conversions

HEX

#428caf

RGB

rgb(66, 140, 175)

HSL

hsl(199.3, 45.2%, 47.3%)

HSV / HSB

hsv(199.3, 62.3%, 68.6%)

CMYK

cmyk(62.3%, 20%, 0%, 31.4%)

LAB

lab(55.08, -12.19, -25.28)

LCH

lch(55.08, 28.07, 244.26)

OKLCH

oklch(60.8%, 0.0904, 231.42)

HWB

hwb(199.3, 25.9%, 31.4%)

Harmony colors

Complementary

#af6542

Analogous

#42af9c

#428caf

#4256af

Triadic

#428caf

#af428c

#8caf42

Split-complementary

#428caf

#af4256

#af9c42

Tetradic

#428caf

#6542af

#af6542

#8caf42

Square

#428caf

#9c42af

#af6542

#56af42

Shades

Color #428caf mixed toward black.

#377592

#2c5d75

#214658

#162f3a

#0b171d

Tints

Color #428caf mixed toward white.

#5ca1c2

#7db4ce

#9dc7da

#bed9e6

#deecf3

Tones

Color #428caf mixed toward gray.

#4b89a6

#54869d

#5d8294

#667f8b

#707c82

Accessibility

Aa White text on this color

3.75:1

Aa Black text on this color

5.6:1

Black text reads better on this background (5.6:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6a6ba7 · ΔE 19.7

Deuteranopia

#6660a5 · ΔE 22.2

Tritanopia

#48a1a0 · ΔE 15.7

Achromatopsia

#848484 · ΔE 18.2

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

Code

CSS

background-color: #428caf;

Tailwind (arbitrary value)

bg-[#428caf]

Related colors

Sky Blue #87ceeb

Light Sky Blue #87cefa

Deep Sky Blue #00bfff

Light Blue #add8e6

Charcoal #36454f

Steel Blue #4682b4

Frequently asked questions

#428caf (#428caf) is rgb(66, 140, 175) in RGB.

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

Generate a palette → Check contrast