Specifically, that site claims: "There were black maids, who had to go down with the ship because of their skin even though all women were supposed to get on the little boats".
Untrue on several counts. Second Officer Lightoller turned several stewardesses (all white) away from the boats because they were crew members. Whatever their colour might have been, there were no maids among the victims. The suggestion that colour was a consideration in the loading of the boats does no justice to the crewmen involved, who made so such distinction. Among the 3rd Class passengers the dark-skinned Syrians, for instance, achieved a much higher rate of survival than did the white Anglo-Saxon British.