chore(plugins): move hexToRgb fn to utils

src/runtime/utils/colors.ts

@@ -17,3 +17,16 @@ export const colorsToExclude = [
 export const excludeColors = (colors: object) => Object.keys(omit(colors, colorsToExclude)).map(color => kebabCase(color)) as string[]
 
 export const colorsAsRegex = (colors: string[]): string => colors.join('|')
+
+export const hexToRgb = (hex) => {
+  // Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF")
+  const shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i
+  hex = hex.replace(shorthandRegex, function (_, r, g, b) {
+    return r + r + g + g + b + b
+  })
+
+  const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)
+  return result
+    ? `${parseInt(result[1], 16)} ${parseInt(result[2], 16)} ${parseInt(result[3], 16)}`
+    : null
+}