#5b57a6

Color #5b57a6

A muted medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 10.64 Nearest Tailwind class slate-600 #45556c · ΔE 10.6

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

Conversions

HEX

#5b57a6

RGB

rgb(91, 87, 166)

HSL

hsl(243, 31.2%, 49.6%)

HSV / HSB

hsv(243, 47.6%, 65.1%)

CMYK

cmyk(45.2%, 47.6%, 0%, 34.9%)

LAB

lab(40.89, 22.6, -42.21)

LCH

lch(40.89, 47.88, 298.17)

OKLCH

oklch(49.9%, 0.123, 283.3)

HWB

hwb(243, 34.1%, 34.9%)

Harmony colors

Complementary

#a2a657

Analogous

#577ba6

#5b57a6

#8257a6

Triadic

#5b57a6

#a65b57

#57a65b

Split-complementary

#5b57a6

#a68257

#7ba657

Tetradic

#5b57a6

#a657a2

#a2a657

#57a65b

Square

#5b57a6

#a6577b

#a2a657

#57a682

Shades

Color #5b57a6 mixed toward black.

#4c498a

#3d3a6f

#2d2c53

#1e1d37

#0f0f1c

Tints

Color #5b57a6 mixed toward white.

#7672b5

#918fc4

#adabd3

#c8c7e2

#e4e3f0

Tones

Color #5b57a6 mixed toward gray.

#615e9f

#676499

#6d6b92

#73718c

#797885

Accessibility

Aa White text on this color

6.25:1

Aa Black text on this color

3.36:1

White text reads better on this background (6.25:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#595998 · ΔE 2.9

Deuteranopia

#5a5a94 · ΔE 3.9

Tritanopia

#5b8b88 · ΔE 30.3

Achromatopsia

#606060 · ΔE 23.5

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

Code

CSS

background-color: #5b57a6;

Tailwind (arbitrary value)

bg-[#5b57a6]

Related colors

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Medium Blue #0000cd

Frequently asked questions

#5b57a6 (#5b57a6) is rgb(91, 87, 166) in RGB.

No, #5b57a6 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 #5b57a6, or check how it holds up for accessibility.

Generate a palette → Check contrast