rgba(255,255,255,.2)

rgba(255,255,255,.4)

rgba(255,255,255,.6)

rgba(255,255,255,.8)

background-color: #789AF3;

hsla(255,255,255,.2)

hsla(255,255,255,.4)

hsla(255,255,255,.6)

hsla(255,255,255,.8)

background-color: #789AF3;