rgb(0..255, 0..255, 0..255) rgba(0..255, 0..255, 0..255, 0..1)
hsv(0..360, 0..100%, 0..100%) hsva(0..360, 0..100%, 0..100%, 0..1)
#ff9900 #ffffff -> rgb(255 = ff, 255 = ff, 255 = ff)
Galima supaprastinti: #ff9900 -> #f90 #ffffff -> #fff #ee22ee -> #e2e
Negalima supaprastinti: #ff9910 -> #ff9910 #fffffe -> #fffffe #efdd99 -> #efdd99
#ff 99 00 #f90
#ff 99 00 88 #f908
#ff ff ff 88 #fff8
[0..1] -> [00..ff]
rgba(r, g, b, alpha(0..1))
rgba(16, 32, 5, 0.3)
10 20 05 (256*0.3)=76.8->77->#4d