#3583b4

Color #3583b4

A moderately saturated medium blue.

Closest named color Steel Blue #4682b4 · ΔE 3.57 Nearest Tailwind class sky-600 #0084d1 · ΔE 3.9

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

Conversions

HEX

#3583b4

RGB

rgb(53, 131, 180)

HSL

hsl(203.1, 54.5%, 45.7%)

HSV / HSB

hsv(203.1, 70.6%, 70.6%)

CMYK

cmyk(70.6%, 27.2%, 0%, 29.4%)

LAB

lab(52.16, -7.6, -32.72)

LCH

lch(52.16, 33.59, 256.92)

OKLCH

oklch(58.4%, 0.1067, 239.9)

HWB

hwb(203.1, 20.8%, 29.4%)

Harmony colors

Complementary

#b46635

Analogous

#35b4a5

#3583b4

#3544b4

Triadic

#3583b4

#b43583

#83b435

Split-complementary

#3583b4

#b43544

#b4a535

Tetradic

#3583b4

#6635b4

#b46635

#83b435

Square

#3583b4

#a535b4

#b46635

#44b435

Shades

Color #3583b4 mixed toward black.

#2c6d96

#235778

#1b425a

#122c3c

#09161e

Tints

Color #3583b4 mixed toward white.

#4d9aca

#70aed5

#94c2df

#b8d7ea

#dbebf4

Tones

Color #3583b4 mixed toward gray.

#4081a9

#4a7e9f

#557c94

#5f798a

#6a777f

Accessibility

Aa White text on this color

4.15:1

Aa Black text on this color

5.06:1

Black text reads better on this background (5.06:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6161aa · ΔE 18.5

Deuteranopia

#5c56a7 · ΔE 21.1

Tritanopia

#3ca19f · ΔE 20.9

Achromatopsia

#7c7c7c · ΔE 19.4

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

Code

CSS

background-color: #3583b4;

Tailwind (arbitrary value)

bg-[#3583b4]

Related colors

Light Sky Blue #87cefa

Charcoal #36454f

Steel Blue #4682b4

Alice Blue #f0f8ff

Sky Blue #87ceeb

Dodger Blue #1e90ff

Frequently asked questions

#3583b4 (#3583b4) is rgb(53, 131, 180) in RGB.

No, #3583b4 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 #3583b4, or check how it holds up for accessibility.

Generate a palette → Check contrast