You will need to go to Ikea and compare colors

It's not merely a question of color--grimslov is a foil door and bodbyn is a painted finish, so the texture is completely different.

Our IKEA KD that came to our home and the employee that helped us at the store said people combine that way all the time. Colors are identical. We decided to stay all Grimslov because the husband really liked the smooth one piece glass of the Grimslov door. I preferred the Bodbyn, but was ok with either. If you look up the combo online there are many examples.