Hex to rgb can be one-lined too (not sure why you include the alpha channel if you're not doing anything to it though...):
const hexToRgb = hex => `rgb(${hex.match(/\w\w/g).map(val => parseInt(val, 16))})`
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Hex to rgb can be one-lined too (not sure why you include the alpha channel if you're not doing anything to it though...):