Way back in 2006 I write an article, Cascading Style Sheet Color chart, with a link to a site that created a set of colors that matched the Behr Premium paint swatches.
I thought that might be valuable in my Xamarin.Forms work so I converted their work and created an Extended Color Palette structure using those colors.
There are 760 total colors in this palette.
You can find the source on my GitHub Repro: