#5b51ad

Color #5b51ad

A muted medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 11.07 Nearest Tailwind class blue-800 #193cb8 · ΔE 9.4

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#5b51ad

RGB

rgb(91, 81, 173)

HSL

hsl(246.5, 36.2%, 49.8%)

HSV / HSB

hsv(246.5, 53.2%, 67.8%)

CMYK

cmyk(47.4%, 53.2%, 0%, 32.2%)

LAB

lab(39.79, 28.5, -48.11)

LCH

lch(39.79, 55.92, 300.64)

OKLCH

oklch(49.3%, 0.1418, 284.88)

HWB

hwb(246.5, 31.8%, 32.2%)

Harmony colors

Complementary

#a3ad51

Analogous

#5175ad

#5b51ad

#8951ad

Triadic

#5b51ad

#ad5b51

#51ad5b

Split-complementary

#5b51ad

#ad8951

#75ad51

Tetradic

#5b51ad

#ad51a3

#a3ad51

#51ad5b

Square

#5b51ad

#ad5175

#a3ad51

#51ad89

Shades

Color #5b51ad mixed toward black.

#4c4490

#3d3673

#2d2956

#1e1b3a

#0f0e1d

Tints

Color #5b51ad mixed toward white.

#766ebb

#918bc9

#ada8d6

#c8c5e4

#e4e2f1

Tones

Color #5b51ad mixed toward gray.

#6159a5

#67609e

#6d6896

#73708e

#797787

Accessibility

Aa White text on this color

6.51:1

Aa Black text on this color

3.23:1

White text reads better on this background (6.51:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#57579d · ΔE 3.9

Deuteranopia

#575899 · ΔE 4.8

Tritanopia

#5b8e8b · ΔE 32.5

Achromatopsia

#5e5e5e · ΔE 25

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

Code

CSS

background-color: #5b51ad;

Tailwind (arbitrary value)

bg-[#5b51ad]

Related colors

Slate Blue #6a5acd

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Frequently asked questions

#5b51ad (#5b51ad) is rgb(91, 81, 173) in RGB.

No, #5b51ad 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 #5b51ad, or check how it holds up for accessibility.

Generate a palette → Check contrast