#3f79d9

Color #3f79d9

A moderately saturated medium blue.

Closest named color Dodger Blue #1e90ff · ΔE 12.07 Nearest Tailwind class blue-500 #2b7fff · ΔE 4.4

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Conversions

HEX

#3f79d9

RGB

rgb(63, 121, 217)

HSL

hsl(217.4, 67%, 54.9%)

HSV / HSB

hsv(217.4, 71%, 85.1%)

CMYK

cmyk(71%, 44.2%, 0%, 14.9%)

LAB

lab(51.54, 13.09, -54.77)

LCH

lch(51.54, 56.31, 283.44)

OKLCH

oklch(58.6%, 0.1592, 259.95)

HWB

hwb(217.4, 24.7%, 14.9%)

Harmony colors

Complementary

#d99f3f

Analogous

#3fc6d9

#3f79d9

#523fd9

Triadic

#3f79d9

#d93f79

#79d93f

Split-complementary

#3f79d9

#d9523f

#c6d93f

Tetradic

#3f79d9

#9f3fd9

#d99f3f

#79d93f

Square

#3f79d9

#d93fc6

#d99f3f

#3fd952

Shades

Color #3f79d9 mixed toward black.

#2661c3

#1f4e9c

#173a75

#0f274e

#081327

Tints

Color #3f79d9 mixed toward white.

#5f8fdf

#7fa6e6

#9fbcec

#bfd2f2

#dfe9f9

Tones

Color #3f79d9 mixed toward gray.

#4c7ccc

#597fbf

#6582b3

#7286a6

#7f8999

Accessibility

Aa White text on this color

4.24:1

Aa Black text on this color

4.95:1

Black text reads better on this background (4.95:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5e5ec7 · ΔE 12.3

Deuteranopia

#5a56c3 · ΔE 14.4

Tritanopia

#43b7b4 · ΔE 33.4

Achromatopsia

#7b7b7b · ΔE 24.9

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

Code

CSS

background-color: #3f79d9;

Tailwind (arbitrary value)

bg-[#3f79d9]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Royal Blue #4169e1

Dodger Blue #1e90ff

Frequently asked questions

#3f79d9 (#3f79d9) is rgb(63, 121, 217) in RGB.

No, #3f79d9 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #3f79d9, or check how it holds up for accessibility.

Generate a palette → Check contrast