#3f7ddf

Color #3f7ddf

A vivid, highly saturated medium blue.

Closest named color Dodger Blue #1e90ff · ΔE 10.3 Nearest Tailwind class blue-500 #2b7fff · ΔE 3.2

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

Conversions

HEX

#3f7ddf

RGB

rgb(63, 125, 223)

HSL

hsl(216.8, 71.4%, 56.1%)

HSV / HSB

hsv(216.8, 71.7%, 87.5%)

CMYK

cmyk(71.7%, 43.9%, 0%, 12.5%)

LAB

lab(53, 12.78, -55.81)

LCH

lch(53, 57.25, 282.9)

OKLCH

oklch(59.9%, 0.1625, 259.26)

HWB

hwb(216.8, 24.7%, 12.5%)

Harmony colors

Complementary

#dfa13f

Analogous

#3fcddf

#3f7ddf

#513fdf

Triadic

#3f7ddf

#df3f7d

#7ddf3f

Split-complementary

#3f7ddf

#df513f

#cddf3f

Tetradic

#3f7ddf

#a13fdf

#dfa13f

#7ddf3f

Square

#3f7ddf

#df3fcd

#dfa13f

#3fdf51

Shades

Color #3f7ddf mixed toward black.

#2264cc

#1b50a3

#143c7b

#0e2852

#071429

Tints

Color #3f7ddf mixed toward white.

#5f93e4

#7fa8ea

#9fbeef

#bfd4f4

#dfe9fa

Tones

Color #3f7ddf mixed toward gray.

#4c80d2

#5a83c4

#6786b7

#7489aa

#828c9c

Accessibility

Aa White text on this color

4.03:1

Aa Black text on this color

5.21:1

Black text reads better on this background (5.21:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6061cd · ΔE 12.7

Deuteranopia

#5c57c8 · ΔE 15.5

Tritanopia

#44bdb9 · ΔE 33.8

Achromatopsia

#7f7f7f · ΔE 25.1

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

Code

CSS

background-color: #3f7ddf;

Tailwind (arbitrary value)

bg-[#3f7ddf]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#3f7ddf (#3f7ddf) is rgb(63, 125, 223) in RGB.

No, #3f7ddf 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 #3f7ddf, or check how it holds up for accessibility.

Generate a palette → Check contrast