Answers for "css add alpha to hex color variable"

add alpha value to css color variable

:root {
  /* #f0f0f0 in decimal RGB */
  --color: 240, 240, 240;
}

body {
  color: #000;
  background-color: #000;
}

#element {
  background-color: rgba(var(--color), 0.8);
}

convert alpha to hex value css

# use the table/mapping over here
https://gist.github.com/lopspower/03fb1cc0ac9f32ef38f4