"The original mod era encompassed the early days of London’s influx of black migrants from the West Indies which started in the 1950s following the initial arrival of the SS Windrush from Jamaica in 1948. By the early 1960s the black presence was progressively impacting London’s clublife. The fact that Mods were listening and dancing to black American music, attending shows and occasionally meeting visiting artists would have helped to diffuse any inherited racism. It was a time of rudimentary racial labeling and we did not make a fine distinction between the black American artists we listened to and the West Indian descendents we came in contact with..."
You should also look up this enlightening article by another face on the scene, Mick Hall: