This document discusses angle resolved color measurements of prints and bulk scattering media. It finds that standard color measurement models like CIELAB do not capture angular variations in color. It presents a radiative transfer model called DORT2002 that can simulate angular light scattering. Measurements of white and blue dyed samples are shown to have color changes with viewing angle, while simulations with the DORT2002 model agree with these measurements. It questions whether the white point is independent of viewing angle during chromatic adaptation. The work is supported by Kempe foundations and the author can be contacted at ludovic.coppel@lgcresearch.se.