#3f8399

Color #3f8399

A moderately saturated medium cyan.

Closest named color Slate Gray #708090 · ΔE 14.9 Nearest Tailwind class cyan-700 #007595 · ΔE 6.7

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Conversions

HEX

#3f8399

RGB

rgb(63, 131, 153)

HSL

hsl(194.7, 41.7%, 42.4%)

HSV / HSB

hsv(194.7, 58.8%, 60%)

CMYK

cmyk(58.8%, 14.4%, 0%, 40%)

LAB

lab(51.37, -14.8, -18.29)

LCH

lch(51.37, 23.53, 231.02)

OKLCH

oklch(57.5%, 0.0763, 221.76)

HWB

hwb(194.7, 24.7%, 40%)

Harmony colors

Complementary

#99553f

Analogous

#3f9982

#3f8399

#3f5699

Triadic

#3f8399

#993f83

#83993f

Split-complementary

#3f8399

#993f56

#99823f

Tetradic

#3f8399

#553f99

#99553f

#83993f

Square

#3f8399

#823f99

#99553f

#56993f

Shades

Color #3f8399 mixed toward black.

#356d80

#2a5766

#20424d

#152c33

#0b161a

Tints

Color #3f8399 mixed toward white.

#529fb8

#74b2c6

#97c5d4

#bad8e2

#dcecf1

Tones

Color #3f8399 mixed toward gray.

#477f92

#4e7b8a

#567883

#5d747b

#657074

Accessibility

Aa White text on this color

4.27:1

Aa Black text on this color

4.92:1

Black text reads better on this background (4.92:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#646494 · ΔE 21.8

Deuteranopia

#605a93 · ΔE 23.4

Tritanopia

#44908f · ΔE 11

Achromatopsia

#7a7a7a · ΔE 17.3

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

Code

CSS

background-color: #3f8399;

Tailwind (arbitrary value)

bg-[#3f8399]

Related colors

Light Blue #add8e6

Deep Sky Blue #00bfff

Sky Blue #87ceeb

Powder Blue #b0e0e6

Light Sky Blue #87cefa

Charcoal #36454f

Frequently asked questions

#3f8399 (#3f8399) is rgb(63, 131, 153) in RGB.

No, #3f8399 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 #3f8399, or check how it holds up for accessibility.

Generate a palette → Check contrast