#3f6689

Color #3f6689

A muted dark blue.

Closest named color Steel Blue #4682b4 · ΔE 13.76 Nearest Tailwind class sky-700 #0069a8 · ΔE 5.5

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

Conversions

HEX

#3f6689

RGB

rgb(63, 102, 137)

HSL

hsl(208.4, 37%, 39.2%)

HSV / HSB

hsv(208.4, 54%, 53.7%)

CMYK

cmyk(54%, 25.5%, 0%, 46.3%)

LAB

lab(41.79, -3.13, -23.56)

LCH

lch(41.79, 23.77, 262.43)

OKLCH

oklch(49.7%, 0.0716, 246.91)

HWB

hwb(208.4, 24.7%, 46.3%)

Harmony colors

Complementary

#89623f

Analogous

#3f8987

#3f6689

#3f4189

Triadic

#3f6689

#893f66

#66893f

Split-complementary

#3f6689

#893f41

#89873f

Tetradic

#3f6689

#623f89

#89623f

#66893f

Square

#3f6689

#873f89

#89623f

#41893f

Shades

Color #3f6689 mixed toward black.

#345572

#2a445b

#1f3344

#15222e

#0a1117

Tints

Color #3f6689 mixed toward white.

#4f80ac

#719abe

#95b3ce

#b8ccde

#dce6ef

Tones

Color #3f6689 mixed toward gray.

#456683

#4b657d

#516576

#586570

#5e646a

Accessibility

Aa White text on this color

6.05:1

Aa Black text on this color

3.47:1

White text reads better on this background (6.05:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#535382 · ΔE 12.7

Deuteranopia

#504d80 · ΔE 13.8

Tritanopia

#427b7a · ΔE 18.3

Achromatopsia

#636363 · ΔE 15.6

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

Code

CSS

background-color: #3f6689;

Tailwind (arbitrary value)

bg-[#3f6689]

Related colors

Alice Blue #f0f8ff

Steel Blue #4682b4

Dodger Blue #1e90ff

Light Slate Gray #778899

Slate Gray #708090

Charcoal #36454f

Frequently asked questions

#3f6689 (#3f6689) is rgb(63, 102, 137) in RGB.

No, #3f6689 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.

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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 #3f6689, or check how it holds up for accessibility.

Generate a palette → Check contrast