#372a81

Color #372a81

A moderately saturated dark blue.

Closest named color Midnight Blue #191970 · ΔE 8.33 Nearest Tailwind class indigo-900 #312c85 · ΔE 1.5

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Conversions

HEX

#372a81

RGB

rgb(55, 42, 129)

HSL

hsl(249, 50.9%, 33.5%)

HSV / HSB

hsv(249, 67.4%, 50.6%)

CMYK

cmyk(57.4%, 67.4%, 0%, 49.4%)

LAB

lab(23.85, 31.3, -47.24)

LCH

lch(23.85, 56.67, 303.53)

OKLCH

oklch(35.7%, 0.1397, 283.54)

HWB

hwb(249, 16.5%, 49.4%)

Harmony colors

Complementary

#74812a

Analogous

#2a4881

#372a81

#622a81

Triadic

#372a81

#81372a

#2a8137

Split-complementary

#372a81

#81622a

#48812a

Tetradic

#372a81

#812a74

#74812a

#2a8137

Square

#372a81

#812a48

#74812a

#2a8162

Shades

Color #372a81 mixed toward black.

#2e236b

#251c56

#1b1540

#120e2b

#090715

Tints

Color #372a81 mixed toward white.

#4938ac

#6654c7

#8c7fd5

#b2aae3

#d9d4f1

Tones

Color #372a81 mixed toward gray.

#3c317a

#413872

#46406b

#4b4764

#504e5d

Accessibility

Aa White text on this color

11.6:1

Aa Black text on this color

1.81:1

White text reads better on this background (11.6:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#323273 · ΔE 4.5

Deuteranopia

#333370 · ΔE 5.2

Tritanopia

#366764 · ΔE 31.6

Achromatopsia

#393939 · ΔE 25.2

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

Code

CSS

background-color: #372a81;

Tailwind (arbitrary value)

bg-[#372a81]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#372a81 (#372a81) is rgb(55, 42, 129) in RGB.

No, #372a81 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 #372a81, or check how it holds up for accessibility.

Generate a palette → Check contrast