I faced the same issue and ended up using an array. Can you help me understand the rest parameter of a function?
I would have to substitute (r, g, b) by (...values) at the function parameters?

i like it picasso

You could have used the rest parameter in your function, declare a [r,g,b] array was unnecessary

@KoneVtwo when this solution was published, ES6 might not have been released yet.

Genuinely impressed. The only question I have is : why didn`t you use the arrow function?

Hah, good one with the '0' on the return. I padded the number with 0's instead, didn't think about that one!