A laundry care composition including (i) from 2 to 70 wt % of a surfactant; and (ii) from 0.0001 to 20.0 wt % of a leuco polymer that includes a polyethylenimine and at least one leuco moiety covalently bound to the polyethylenimine. The polyethylenimine comprises three or more amine nitrogen atoms and 1 mol. % or more of amine hydrogen atoms in the polyethylenimine are replaced with a moiety selected from the group consisting of 2-hydroxypropyl, 1-hydroxypropane-2-yl, and polyalkoxy groups. Methods of making the leuco polymer and methods of treating textiles with such laundry care compositions.