hex "000000" -- Just (rgba 0 0 0 1) hex "000000" -- Just (rgba 0 0 0 1) hex "FFFFFF" -- Just (rgba 1 1 1 1) hex "#FFFFFF" -- Just (rgba 1 1 1 1) hex "FFF" -- Nothing
hexa ( "000000", 0 ) -- Just (rgba 0 0 0 0) hexa ( "FFFFFF", 1 ) -- Just (rgba 1 1 1 1) hexa ( "#FFFFFF", 0 ) -- Just (rgba 1 1 1 0) hexa ( "FFFFFF", 10 ) -- Nothing hexa ( "FFFFFF", -1 ) -- Nothing