#3663a5

Color #3663a5

A moderately saturated medium blue.

Closest named color Steel Blue #4682b4 · ΔE 17.03 Nearest Tailwind class sky-700 #0069a8 · ΔE 5.8

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

Conversions

HEX

#3663a5

RGB

rgb(54, 99, 165)

HSL

hsl(215.7, 50.7%, 42.9%)

HSV / HSB

hsv(215.7, 67.3%, 64.7%)

CMYK

cmyk(67.3%, 40%, 0%, 35.3%)

LAB

lab(41.88, 6.61, -40.16)

LCH

lch(41.88, 40.7, 279.35)

OKLCH

oklch(50.1%, 0.117, 257.96)

HWB

hwb(215.7, 21.2%, 35.3%)

Harmony colors

Complementary

#a57836

Analogous

#369aa5

#3663a5

#4036a5

Triadic

#3663a5

#a53663

#63a536

Split-complementary

#3663a5

#a54036

#9aa536

Tetradic

#3663a5

#7836a5

#a57836

#63a536

Square

#3663a5

#a5369a

#a57836

#36a540

Shades

Color #3663a5 mixed toward black.

#2d5289

#24426e

#1b3152

#122137

#09101b

Tints

Color #3663a5 mixed toward white.

#487ac3

#6d95cf

#91afdb

#b6cae7

#dae4f3

Tones

Color #3663a5 mixed toward gray.

#3f659c

#486692

#526889

#5b6a80

#646c77

Accessibility

Aa White text on this color

6.03:1

Aa Black text on this color

3.48:1

White text reads better on this background (6.03:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#4d4e98 · ΔE 10.5

Deuteranopia

#4b4795 · ΔE 12.4

Tritanopia

#398d8b · ΔE 27.8

Achromatopsia

#636363 · ΔE 21.3

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

Code

CSS

background-color: #3663a5;

Tailwind (arbitrary value)

bg-[#3663a5]

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

#3663a5 (#3663a5) is rgb(54, 99, 165) in RGB.

No, #3663a5 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 #3663a5, or check how it holds up for accessibility.

Generate a palette → Check contrast