LeaVerou/rgba.php — pull request #7 by yukulele (2012-05-15 14:20:34+00:00)
Title: add HSLA support

rgba.php?h=90&s=0&b=50&a=50
rgba.php/hsla(90,50%,50%,.5) // "%" must be urlencoded "%25" or removed :
rgba.php/hsla(90,50%25,50%25,.5)
rgba.php/hsla(90,50,50,.5)