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A challenge I faced in building an image “emojifier” was that I needed to change the color spaces of values obtained using getImageData() from RGB to HSL. I used arrays of emojis arranged by brightness and saturation, and they were …

Weird right? 4-digit hex codes too. They are a way put alpha transparency information into the hex format for colors. You might be seeing it more all the sudden if you use Chrome, because it dropped in 52, and …

Here’s a quicky (there is a PHP version too):

var randomColor = Math.floor(Math.random()*16777215).toString(16);

See the Pen
Generate New Random Hex Color with JavaScript by Chris Coyier (@chriscoyier)
on CodePen.

If you’d prefer they are a bit more …