#3737a5

Color #3737a5

A moderately saturated medium blue.

Closest named color Rebecca Purple #663399 · ΔE 14.52 Nearest Tailwind class indigo-800 #372aac · ΔE 3.6

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Conversions

HEX

#3737a5

RGB

rgb(55, 55, 165)

HSL

hsl(240, 50%, 43.1%)

HSV / HSB

hsv(240, 66.7%, 64.7%)

CMYK

cmyk(66.7%, 66.7%, 0%, 35.3%)

LAB

lab(30.06, 35.37, -59.25)

LCH

lch(30.06, 69, 300.84)

OKLCH

oklch(41.2%, 0.1719, 275.78)

HWB

hwb(240, 21.6%, 35.3%)

Harmony colors

Complementary

#a5a537

Analogous

#376ea5

#3737a5

#6e37a5

Triadic

#3737a5

#a53737

#37a537

Split-complementary

#3737a5

#a56e37

#6ea537

Tetradic

#3737a5

#a537a5

#a5a537

#37a537

Square

#3737a5

#a5376e

#a5a537

#37a56e

Shades

Color #3737a5 mixed toward black.

#2e2e89

#25256e

#1b1b52

#121237

#09091b

Tints

Color #3737a5 mixed toward white.

#4a4ac3

#6e6ecf

#9292db

#b6b6e7

#dbdbf3

Tones

Color #3737a5 mixed toward gray.

#40409c

#494993

#525289

#5c5c80

#656577

Accessibility

Aa White text on this color

9.32:1

Aa Black text on this color

2.25:1

White text reads better on this background (9.32:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#373794 · ΔE 2.6

Deuteranopia

#37378f · ΔE 3.4

Tritanopia

#378480 · ΔE 37.3

Achromatopsia

#474747 · ΔE 27.1

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

Code

CSS

background-color: #3737a5;

Tailwind (arbitrary value)

bg-[#3737a5]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#3737a5 (#3737a5) is rgb(55, 55, 165) in RGB.

No, #3737a5 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 #3737a5, or check how it holds up for accessibility.

Generate a palette → Check contrast