#3b5699

Color #3b5699

A moderately saturated medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 16.15 Nearest Tailwind class slate-600 #45556c · ΔE 8.5

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Conversions

HEX

#3b5699

RGB

rgb(59, 86, 153)

HSL

hsl(222.8, 44.3%, 41.6%)

HSV / HSB

hsv(222.8, 61.4%, 60%)

CMYK

cmyk(61.4%, 43.8%, 0%, 40%)

LAB

lab(37.63, 11.59, -39.75)

LCH

lch(37.63, 41.41, 286.26)

OKLCH

oklch(46.6%, 0.1135, 265.66)

HWB

hwb(222.8, 23.1%, 40%)

Harmony colors

Complementary

#997e3b

Analogous

#3b8599

#3b5699

#4f3b99

Triadic

#3b5699

#993b56

#56993b

Split-complementary

#3b5699

#994f3b

#85993b

Tetradic

#3b5699

#7e3b99

#997e3b

#56993b

Square

#3b5699

#993b85

#997e3b

#3b994f

Shades

Color #3b5699 mixed toward black.

#314880

#273966

#1e2b4d

#141d33

#0a0e1a

Tints

Color #3b5699 mixed toward white.

#4c6bba

#7089c8

#94a6d6

#b7c4e3

#dbe1f1

Tones

Color #3b5699 mixed toward gray.

#435991

#4b5d89

#536082

#5a637a

#626772

Accessibility

Aa White text on this color

7.05:1

Aa Black text on this color

2.98:1

White text reads better on this background (7.05:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#48488c · ΔE 6.9

Deuteranopia

#474489 · ΔE 8.1

Tritanopia

#3d817f · ΔE 28.3

Achromatopsia

#595959 · ΔE 21.7

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

Code

CSS

background-color: #3b5699;

Tailwind (arbitrary value)

bg-[#3b5699]

Related colors

Royal Blue #4169e1

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#3b5699 (#3b5699) is rgb(59, 86, 153) in RGB.

No, #3b5699 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 #3b5699, or check how it holds up for accessibility.

Generate a palette → Check contrast