#3f6f88

Color #3f6f88

A muted dark blue.

Closest named color Slate Gray #708090 · ΔE 13.44 Nearest Tailwind class cyan-700 #007595 · ΔE 5.1

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

Conversions

HEX

#3f6f88

RGB

rgb(63, 111, 136)

HSL

hsl(200.5, 36.7%, 39%)

HSV / HSB

hsv(200.5, 53.7%, 53.3%)

CMYK

cmyk(53.7%, 18.4%, 0%, 46.7%)

LAB

lab(44.52, -8.81, -18.75)

LCH

lch(44.52, 20.72, 244.83)

OKLCH

oklch(51.8%, 0.0655, 232.69)

HWB

hwb(200.5, 24.7%, 46.7%)

Harmony colors

Complementary

#88583f

Analogous

#3f887c

#3f6f88

#3f4b88

Triadic

#3f6f88

#883f6f

#6f883f

Split-complementary

#3f6f88

#883f4b

#887c3f

Tetradic

#3f6f88

#583f88

#88583f

#6f883f

Square

#3f6f88

#7c3f88

#88583f

#4b883f

Shades

Color #3f6f88 mixed toward black.

#345d71

#2a4a5b

#1f3844

#15252d

#0a1317

Tints

Color #3f6f88 mixed toward white.

#4f8cab

#71a3bd

#95bace

#b8d1de

#dce8ef

Tones

Color #3f6f88 mixed toward gray.

#456d82

#4b6b7c

#516976

#576770

#5d656a

Accessibility

Aa White text on this color

5.47:1

Aa Black text on this color

3.84:1

White text reads better on this background (5.47:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#585882 · ΔE 17.6

Deuteranopia

#555181 · ΔE 18.6

Tritanopia

#427e7d · ΔE 13.6

Achromatopsia

#696969 · ΔE 15.1

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

Code

CSS

background-color: #3f6f88;

Tailwind (arbitrary value)

bg-[#3f6f88]

Related colors

Light Sky Blue #87cefa

Sky Blue #87ceeb

Charcoal #36454f

Deep Sky Blue #00bfff

Light Blue #add8e6

Steel Blue #4682b4

Frequently asked questions

#3f6f88 (#3f6f88) is rgb(63, 111, 136) in RGB.

No, #3f6f88 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 #3f6f88, or check how it holds up for accessibility.

Generate a palette → Check contrast