#3f5570

Color #3f5570

A muted dark blue.

Closest named color Charcoal #36454f · ΔE 12.62 Nearest Tailwind class slate-600 #45556c · ΔE 1.9

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Conversions

HEX

#3f5570

RGB

rgb(63, 85, 112)

HSL

hsl(213.1, 28%, 34.3%)

HSV / HSB

hsv(213.1, 43.7%, 43.9%)

CMYK

cmyk(43.7%, 24.1%, 0%, 56.1%)

LAB

lab(35.45, -0.62, -18.09)

LCH

lch(35.45, 18.1, 268.04)

OKLCH

oklch(44.3%, 0.0523, 253.92)

HWB

hwb(213.1, 24.7%, 56.1%)

Harmony colors

Complementary

#705a3f

Analogous

#3f6d70

#3f5570

#423f70

Triadic

#3f5570

#703f55

#55703f

Split-complementary

#3f5570

#70423f

#6d703f

Tetradic

#3f5570

#5a3f70

#705a3f

#55703f

Square

#3f5570

#703f6d

#705a3f

#3f7042

Shades

Color #3f5570 mixed toward black.

#34475d

#2a394b

#1f2a38

#151c25

#0a0e13

Tints

Color #3f5570 mixed toward white.

#537094

#708caf

#94a9c3

#b8c6d7

#dbe2eb

Tones

Color #3f5570 mixed toward gray.

#43556c

#475668

#4b5664

#4f5760

#53575c

Accessibility

Aa White text on this color

7.65:1

Aa Black text on this color

2.74:1

White text reads better on this background (7.65:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#494a6a · ΔE 9.3

Deuteranopia

#484669 · ΔE 10.8

Tritanopia

#406564 · ΔE 16.5

Achromatopsia

#535353 · ΔE 12.9

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

Code

CSS

background-color: #3f5570;

Tailwind (arbitrary value)

bg-[#3f5570]

Related colors

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Cornflower Blue #6495ed

Frequently asked questions

#3f5570 (#3f5570) is rgb(63, 85, 112) in RGB.

No, #3f5570 is not web-safe. The nearest web-safe colors are among its tones and shades below.

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 #3f5570, or check how it holds up for accessibility.

Generate a palette → Check contrast