#3581e7

Color #3581e7

A vivid, highly saturated medium blue.

Closest named color Dodger Blue #1e90ff · ΔE 7.51 Nearest Tailwind class blue-500 #2b7fff · ΔE 2.7

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

Conversions

HEX

#3581e7

RGB

rgb(53, 129, 231)

HSL

hsl(214.4, 78.8%, 55.7%)

HSV / HSB

hsv(214.4, 77.1%, 90.6%)

CMYK

cmyk(77.1%, 44.2%, 0%, 9.4%)

LAB

lab(54.26, 12.01, -58.29)

LCH

lch(54.26, 59.51, 281.64)

OKLCH

oklch(60.9%, 0.1715, 256.99)

HWB

hwb(214.4, 20.8%, 9.4%)

Harmony colors

Complementary

#e79b35

Analogous

#35dae7

#3581e7

#4235e7

Triadic

#3581e7

#e73581

#81e735

Split-complementary

#3581e7

#e74235

#dae735

Tetradic

#3581e7

#9b35e7

#e79b35

#81e735

Square

#3581e7

#e735da

#e79b35

#35e742

Shades

Color #3581e7 mixed toward black.

#1969d4

#1454a9

#0f3f7f

#0a2a55

#05152a

Tints

Color #3581e7 mixed toward white.

#5796eb

#78abef

#9ac0f3

#bcd5f7

#ddeafb

Tones

Color #3581e7 mixed toward gray.

#4483d8

#5385c9

#6288bb

#708aac

#7f8c9d

Accessibility

Aa White text on this color

3.86:1

Aa Black text on this color

5.45:1

Black text reads better on this background (5.45:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5f60d4 · ΔE 14.6

Deuteranopia

#5b55cf · ΔE 17.8

Tritanopia

#3cc3bf · ΔE 34.3

Achromatopsia

#828282 · ΔE 25.5

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

Code

CSS

background-color: #3581e7;

Tailwind (arbitrary value)

bg-[#3581e7]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#3581e7 (#3581e7) is rgb(53, 129, 231) in RGB.

No, #3581e7 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.

Try it → Accessibility

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 #3581e7, or check how it holds up for accessibility.

Generate a palette → Check contrast