24bit is far from enough to prevent banding, and in many cases it's not just "a tiny amount" either. For example, a css gradient from #333 to #666: http://i.im

24bit is far from enough to prevent banding, and in many cases it's not just "a tiny amount" either. For example, a css gradient from #333 to #666: http://i.imgur.com/9xeDT.png?1 http://i.imgur.com/9xeDT.png?1 It's quite obvious that for a gradient from 0x33 to 0x66 (one component), there are simply not enough distinct values to prevent banding. In this case, the range is 51 different values, for a gradient that's maybe spanning 500-1000 pixels. It really looks quite terrible.