I enjoy using the Extended Colour Keywords from http://www.w3.org/TR/css3-color/#svg-color, but I'd like to be able to specify the opacity
/alpha-channel for my color
/border-color
/background-color
, all without having to resort to the decimal or hexadecimal colour specs themselves (e.g., still referring to the primary colour by its name/keyword).
Is there an alternative to rgba()
that lets you specify the desired opacity of a keyword-based colour?