RGB de cor vermelha
rgb(255,0,0) /*red*/ Hex #FF0000
Batman
rgb(255,0,0) /*red*/ Hex #FF0000
rgb(255,255,0) /* yellow*/ Hex #FFFF00
selector {
background-color: #FF0000; /* or rgb(255, 0, 0) */
/* color: rgb(255, 0, 0); */
}