#37539b

Color #37539b

A moderately saturated medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 13.86 Nearest Tailwind class blue-900 #1c398e · ΔE 8.2

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

Conversions

HEX

#37539b

RGB

rgb(55, 83, 155)

HSL

hsl(223.2, 47.6%, 41.2%)

HSV / HSB

hsv(223.2, 64.5%, 60.8%)

CMYK

cmyk(64.5%, 46.5%, 0%, 39.2%)

LAB

lab(36.68, 13.49, -42.5)

LCH

lch(36.68, 44.59, 287.61)

OKLCH

oklch(45.9%, 0.1217, 265.81)

HWB

hwb(223.2, 21.6%, 39.2%)

Harmony colors

Complementary

#9b7f37

Analogous

#37859b

#37539b

#4d379b

Triadic

#37539b

#9b3753

#539b37

Split-complementary

#37539b

#9b4d37

#859b37

Tetradic

#37539b

#7f379b

#9b7f37

#539b37

Square

#37539b

#9b3785

#9b7f37

#379b4d

Shades

Color #37539b mixed toward black.

#2e4581

#253767

#1c2a4e

#121c34

#090e1a

Tints

Color #37539b mixed toward white.

#4768be

#6b86cb

#90a4d8

#b5c3e5

#dae1f2

Tones

Color #37539b mixed toward gray.

#3f5793

#485a8a

#505e82

#58627a

#616571

Accessibility

Aa White text on this color

7.31:1

Aa Black text on this color

2.87:1

White text reads better on this background (7.31:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#45458e · ΔE 6.8

Deuteranopia

#43418a · ΔE 7.8

Tritanopia

#39827f · ΔE 29.9

Achromatopsia

#565656 · ΔE 22.5

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

Code

CSS

background-color: #37539b;

Tailwind (arbitrary value)

bg-[#37539b]

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

#37539b (#37539b) is rgb(55, 83, 155) in RGB.

No, #37539b 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.

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 #37539b, or check how it holds up for accessibility.

Generate a palette → Check contrast