#3f6fbb

Color #3f6fbb

A moderately saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 15.6 Nearest Tailwind class sky-700 #0069a8 · ΔE 6.8

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

Conversions

HEX

#3f6fbb

RGB

rgb(63, 111, 187)

HSL

hsl(216.8, 49.6%, 49%)

HSV / HSB

hsv(216.8, 66.3%, 73.3%)

CMYK

cmyk(66.3%, 40.6%, 0%, 26.7%)

LAB

lab(46.99, 8.54, -44.88)

LCH

lch(46.99, 45.69, 280.77)

OKLCH

oklch(54.6%, 0.1302, 259.24)

HWB

hwb(216.8, 24.7%, 26.7%)

Harmony colors

Complementary

#bb8b3f

Analogous

#3fadbb

#3f6fbb

#4d3fbb

Triadic

#3f6fbb

#bb3f6f

#6fbb3f

Split-complementary

#3f6fbb

#bb4d3f

#adbb3f

Tetradic

#3f6fbb

#8b3fbb

#bb8b3f

#6fbb3f

Square

#3f6fbb

#bb3fad

#bb8b3f

#3fbb4d

Shades

Color #3f6fbb mixed toward black.

#345c9c

#2a4a7d

#1f375d

#15253e

#0a121f

Tints

Color #3f6fbb mixed toward white.

#5d86c8

#7d9fd3

#9eb7de

#becfe9

#dfe7f4

Tones

Color #3f6fbb mixed toward gray.

#4971b1

#5474a6

#5e769c

#687892

#737b87

Accessibility

Aa White text on this color

5:1

Aa Black text on this color

4.2:1

White text reads better on this background (5:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#5858ac · ΔE 11.2

Deuteranopia

#5551a9 · ΔE 13

Tritanopia

#42a09d · ΔE 30

Achromatopsia

#6f6f6f · ΔE 22.6

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

Code

CSS

background-color: #3f6fbb;

Tailwind (arbitrary value)

bg-[#3f6fbb]

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

#3f6fbb (#3f6fbb) is rgb(63, 111, 187) in RGB.

No, #3f6fbb 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 #3f6fbb, or check how it holds up for accessibility.

Generate a palette → Check contrast