#3f80da

Color #3f80da

A moderately saturated medium blue.

Closest named color Cornflower Blue #6495ed · ΔE 8.84 Nearest Tailwind class blue-500 #2b7fff · ΔE 3.6

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

Conversions

HEX

#3f80da

RGB

rgb(63, 128, 218)

HSL

hsl(214.8, 67.7%, 55.1%)

HSV / HSB

hsv(214.8, 71.1%, 85.5%)

CMYK

cmyk(71.1%, 41.3%, 0%, 14.5%)

LAB

lab(53.55, 9.14, -52.12)

LCH

lch(53.55, 52.92, 279.95)

OKLCH

oklch(60.2%, 0.1526, 257.17)

HWB

hwb(214.8, 24.7%, 14.5%)

Harmony colors

Complementary

#da993f

Analogous

#3fceda

#3f80da

#4b3fda

Triadic

#3f80da

#da3f80

#80da3f

Split-complementary

#3f80da

#da4b3f

#ceda3f

Tetradic

#3f80da

#993fda

#da993f

#80da3f

Square

#3f80da

#da3fce

#da993f

#3fda4b

Shades

Color #3f80da mixed toward black.

#2668c4

#1e549d

#173f76

#0f2a4f

#081527

Tints

Color #3f80da mixed toward white.

#5f95e0

#7faae6

#9fc0ed

#bfd5f3

#dfeaf9

Tones

Color #3f80da mixed toward gray.

#4c82cd

#5984c0

#6686b3

#7388a6

#808a99

Accessibility

Aa White text on this color

3.95:1

Aa Black text on this color

5.31:1

Black text reads better on this background (5.31:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#6262c9 · ΔE 13.9

Deuteranopia

#5e59c5 · ΔE 16.4

Tritanopia

#44bab6 · ΔE 32.1

Achromatopsia

#808080 · ΔE 24.2

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

Code

CSS

background-color: #3f80da;

Tailwind (arbitrary value)

bg-[#3f80da]

Related colors

Light Steel Blue #b0c4de

Cornflower Blue #6495ed

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Alice Blue #f0f8ff

Frequently asked questions

#3f80da (#3f80da) is rgb(63, 128, 218) in RGB.

No, #3f80da 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 #3f80da, or check how it holds up for accessibility.

Generate a palette → Check contrast