White women with Black men, most often. More recently, White women with Asian (i.e. Indian/Pakistani) men. White men with Pakistani females is a big no-no though. Whereas Black-White marriages are of no interest to anyone anymore, both sides seem to accept them; they're only controversial to BNP types and to some over-70s, who still remember Britain being an [almost] entirely White country. For some reason it is still much more common to see a Black man and a White woman than vice versa, but I don't think that is because Blacks don't want their women to marry White men. Most people keep to their own colour, but that is true of almost everywhere in the world, for varying reasons.