#5b51b1

Color #5b51b1

A muted medium blue.

Closest named color Slate Blue #6a5acd · ΔE 11.29 Nearest Tailwind class blue-700 #1447e6 · ΔE 9.2

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Conversions

HEX

#5b51b1

RGB

rgb(91, 81, 177)

HSL

hsl(246.3, 38.1%, 50.6%)

HSV / HSB

hsv(246.3, 54.2%, 69.4%)

CMYK

cmyk(48.6%, 54.2%, 0%, 30.6%)

LAB

lab(40.05, 29.73, -50.05)

LCH

lch(40.05, 58.21, 300.71)

OKLCH

oklch(49.5%, 0.1473, 284.39)

HWB

hwb(246.3, 31.8%, 30.6%)

Harmony colors

Complementary

#a7b151

Analogous

#5177b1

#5b51b1

#8b51b1

Triadic

#5b51b1

#b15b51

#51b15b

Split-complementary

#5b51b1

#b18b51

#77b151

Tetradic

#5b51b1

#b151a7

#a7b151

#51b15b

Square

#5b51b1

#b15177

#a7b151

#51b18b

Shades

Color #5b51b1 mixed toward black.

#4b4394

#3c3577

#2d2859

#1e1b3b

#0f0d1e

Tints

Color #5b51b1 mixed toward white.

#766ebe

#928bcb

#ada8d8

#c8c5e5

#e4e2f2

Tones

Color #5b51b1 mixed toward gray.

#6159a9

#6861a1

#6e6999

#747191

#7b7989

Accessibility

Aa White text on this color

6.45:1

Aa Black text on this color

3.26:1

White text reads better on this background (6.45:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5757a0 · ΔE 4

Deuteranopia

#57589c · ΔE 4.8

Tritanopia

#5b918e · ΔE 33.3

Achromatopsia

#5e5e5e · ΔE 25.4

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

Code

CSS

background-color: #5b51b1;

Tailwind (arbitrary value)

bg-[#5b51b1]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#5b51b1 (#5b51b1) is rgb(91, 81, 177) in RGB.

No, #5b51b1 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

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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 #5b51b1, or check how it holds up for accessibility.

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