Test of colored underlines #ff44ee #A00030 and #00f and #ff0 rgb(250,0,0) and rgb( 0,250,2 ) rgb(20,20,0) and rgba(20,20,0,0.99) hsl(0, 100%, 50%) and hsl(0, 100%, 50%) and hsla(0, 100%, 50%,0.5) hsl(240, 100%, 50%) and hsl(240, 100%, 50%) and hsl(240, 100%, 50%) hsl(120, 100%, 50% ) and hsl( 147, 50%, 47% ) and hsl( 147,50%, 47% ) rgb(10 50 200) rgba(10 50 200) rgb(10 50 200 / 50) rgba(10 50 200 / 50) rgb(10 50 200 / 50%) rgba(10 50 200 / 50% )