RGB(A) values returned aren't integers and result in error

[denniszhao]

After scaling between two colors and calling .css(), the RGB values aren't rounded, and the decimal values can't be used.

e.g.

var scale = chroma.scale("YlGnBu");
console.log(scale(0.3).css())

will give:

rgb(170.20000000000002,221.8,182.8)

which is unusable (at least in Chrome v39). I think it'd be best to just round the number – not sure what a decimal value in RGB would represent, anyways 😄

I can submit a pull request in a couple of days after I find some time if you think this is a legitimate concern – would love to help out!

[yuchi]

Rounded values represent only a subset of the RGB color space. </pedantic>

[gka]

I agree, when outputting colors for CSS the RGB values should be rounded. Will fix this.