#311c8a

Color #311c8a

A moderately saturated dark blue.

Closest named color Indigo #4b0082 · ΔE 11.06 Nearest Tailwind class indigo-900 #312c85 · ΔE 4.4

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Conversions

HEX

#311c8a

RGB

rgb(49, 28, 138)

HSL

hsl(251.5, 66.3%, 32.5%)

HSV / HSB

hsv(251.5, 79.7%, 54.1%)

CMYK

cmyk(64.5%, 79.7%, 0%, 45.9%)

LAB

lab(21.27, 41.34, -57.13)

LCH

lch(21.27, 70.52, 305.89)

OKLCH

oklch(34%, 0.1681, 281.39)

HWB

hwb(251.5, 11%, 45.9%)

Harmony colors

Complementary

#758a1c

Analogous

#1c3e8a

#311c8a

#681c8a

Triadic

#311c8a

#8a311c

#1c8a31

Split-complementary

#311c8a

#8a681c

#3e8a1c

Tetradic

#311c8a

#8a1c75

#758a1c

#1c8a31

Square

#311c8a

#8a1c3e

#758a1c

#1c8a68

Shades

Color #311c8a mixed toward black.

#291773

#21135c

#180e45

#10092e

#080517

Tints

Color #311c8a mixed toward white.

#4226ba

#5d40d8

#8670e2

#aea0ec

#d7cff5

Tones

Color #311c8a mixed toward gray.

#372581

#3c2e78

#42376e

#484165

#4d4a5c

Accessibility

Aa White text on this color

12.62:1

Aa Black text on this color

1.66:1

White text reads better on this background (12.62:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#29297a · ΔE 5.1

Deuteranopia

#2a2c76 · ΔE 6.4

Tritanopia

#306c68 · ΔE 35.7

Achromatopsia

#333333 · ΔE 27.3

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

Code

CSS

background-color: #311c8a;

Tailwind (arbitrary value)

bg-[#311c8a]

Related colors

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Medium Purple #9370db

Navy #000080

Lavender #e6e6fa

Frequently asked questions

#311c8a (#311c8a) is rgb(49, 28, 138) in RGB.

No, #311c8a 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 #311c8a, or check how it holds up for accessibility.

Generate a palette → Check contrast