Galaxy mass and environment are known to play a key role in galaxy evolution: looking at galaxy colors at different redshifts, fixed galaxy mass and environment, offers a powerful diagnosis to disentangle the role of each. In this talk, we study at the same time the dependence of the fraction of blue galaxies on secular evolution, environment and galaxy mass with a well-controlled cluster sample spanning the last 10 Gyr (0 < z < 2). We found that the mass and environmental quenchings are separable, that environmental quenching does not change with epoch, and that mass quenching is a dynamical process.