#4b578f

Color #4b578f

A muted medium blue.

Closest named color Dark Slate Blue #483d8b · ΔE 19.16 Nearest Tailwind class slate-600 #45556c · ΔE 8

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Conversions

HEX

#4b578f

RGB

rgb(75, 87, 143)

HSL

hsl(229.4, 31.2%, 42.7%)

HSV / HSB

hsv(229.4, 47.6%, 56.1%)

CMYK

cmyk(47.6%, 39.2%, 0%, 43.9%)

LAB

lab(38.37, 11.27, -32.49)

LCH

lch(38.37, 34.39, 289.13)

OKLCH

oklch(47.3%, 0.0917, 273.25)

HWB

hwb(229.4, 29.4%, 43.9%)

Harmony colors

Complementary

#8f834b

Analogous

#4b798f

#4b578f

#614b8f

Triadic

#4b578f

#8f4b57

#578f4b

Split-complementary

#4b578f

#8f614b

#798f4b

Tetradic

#4b578f

#834b8f

#8f834b

#578f4b

Square

#4b578f

#8f4b79

#8f834b

#4b8f61

Shades

Color #4b578f mixed toward black.

#3e4877

#323a5f

#252b47

#191d30

#0c0e18

Tints

Color #4b578f mixed toward white.

#5f6dab

#7f8abc

#9fa7cd

#bfc4dd

#dfe2ee

Tones

Color #4b578f mixed toward gray.

#515b89

#565e84

#5c627e

#626678

#676973

Accessibility

Aa White text on this color

6.86:1

Aa Black text on this color

3.06:1

White text reads better on this background (6.86:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#505184 · ΔE 3.8

Deuteranopia

#504f81 · ΔE 4.7

Tritanopia

#4c7b78 · ΔE 26.4

Achromatopsia

#5a5a5a · ΔE 19.9

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

Code

CSS

background-color: #4b578f;

Tailwind (arbitrary value)

bg-[#4b578f]

Related colors

Royal Blue #4169e1

Navy #000080

Lavender #e6e6fa

Blue #0000ff

Dark Blue #00008b

Ghost White #f8f8ff

Frequently asked questions

#4b578f (#4b578f) is rgb(75, 87, 143) in RGB.

No, #4b578f 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 #4b578f, or check how it holds up for accessibility.

Generate a palette → Check contrast