#3f537c

Color #3f537c

A muted dark blue.

Closest named color Steel Blue #4682b4 · ΔE 20.2 Nearest Tailwind class slate-600 #45556c · ΔE 5.4

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

Conversions

HEX

#3f537c

RGB

rgb(63, 83, 124)

HSL

hsl(220.3, 32.6%, 36.7%)

HSV / HSB

hsv(220.3, 49.2%, 48.6%)

CMYK

cmyk(49.2%, 33.1%, 0%, 51.4%)

LAB

lab(35.4, 4.49, -25.61)

LCH

lch(35.4, 26, 279.94)

OKLCH

oklch(44.5%, 0.0723, 263.81)

HWB

hwb(220.3, 24.7%, 51.4%)

Harmony colors

Complementary

#7c683f

Analogous

#3f727c

#3f537c

#4a3f7c

Triadic

#3f537c

#7c3f53

#537c3f

Split-complementary

#3f537c

#7c4a3f

#727c3f

Tetradic

#3f537c

#683f7c

#7c683f

#537c3f

Square

#3f537c

#7c3f72

#7c683f

#3f7c4a

Shades

Color #3f537c mixed toward black.

#354567

#2a3753

#202a3e

#151c29

#0b0e15

Tints

Color #3f537c mixed toward white.

#516ba0

#7087b6

#94a5c9

#b8c3db

#dbe1ed

Tones

Color #3f537c mixed toward gray.

#445577

#495772

#4e586d

#535a68

#595c63

Accessibility

Aa White text on this color

7.67:1

Aa Black text on this color

2.74:1

White text reads better on this background (7.67:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#484974 · ΔE 6.3

Deuteranopia

#474672 · ΔE 7.1

Tritanopia

#406d6b · ΔE 22.4

Achromatopsia

#535353 · ΔE 16.6

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

Code

CSS

background-color: #3f537c;

Tailwind (arbitrary value)

bg-[#3f537c]

Related colors

Cornflower Blue #6495ed

Royal Blue #4169e1

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Frequently asked questions

#3f537c (#3f537c) is rgb(63, 83, 124) in RGB.

No, #3f537c 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.

Try it → Accessibility

Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

Try it → Generators

Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

Try it →

Build something with this color

Generate a full palette from #3f537c, or check how it holds up for accessibility.

Generate a palette → Check contrast