#331cd3

Color #331cd3

A vivid, highly saturated medium blue.

Closest named color Medium Blue #0000cd · ΔE 8.3 Nearest Tailwind class indigo-700 #432dd7 · ΔE 3.3

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Conversions

HEX

#331cd3

RGB

rgb(51, 28, 211)

HSL

hsl(247.5, 76.6%, 46.9%)

HSV / HSB

hsv(247.5, 86.7%, 82.7%)

CMYK

cmyk(75.8%, 86.7%, 0%, 17.3%)

LAB

lab(30, 62.82, -86.55)

LCH

lch(30, 106.95, 305.97)

OKLCH

oklch(42.5%, 0.2506, 273.2)

HWB

hwb(247.5, 11%, 17.3%)

Harmony colors

Complementary

#bcd31c

Analogous

#1c61d3

#331cd3

#8e1cd3

Triadic

#331cd3

#d3331c

#1cd333

Split-complementary

#331cd3

#d38e1c

#61d31c

Tetradic

#331cd3

#d31cbc

#bcd31c

#1cd333

Square

#331cd3

#d31c61

#bcd31c

#1cd38e

Shades

Color #331cd3 mixed toward black.

#2a17b0

#22138d

#190e6a

#110946

#080523

Tints

Color #331cd3 mixed toward white.

#4d38e5

#7160ea

#9487ef

#b8aff4

#dbd7fa

Tones

Color #331cd3 mixed toward gray.

#3e2bc4

#4a3bb5

#554aa5

#615996

#6c6887

Accessibility

Aa White text on this color

9.34:1

Aa Black text on this color

2.25:1

White text reads better on this background (9.34:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2b2abb · ΔE 3.7

Deuteranopia

#2c2db5 · ΔE 4.7

Tritanopia

#32a59f · ΔE 49.2

Achromatopsia

#474747 · ΔE 31.4

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

Code

CSS

background-color: #331cd3;

Tailwind (arbitrary value)

bg-[#331cd3]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#331cd3 (#331cd3) is rgb(51, 28, 211) in RGB.

No, #331cd3 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 #331cd3, or check how it holds up for accessibility.

Generate a palette → Check contrast