According to an old Inuit tale there was an owl and raven, who were very close friends. To express this deep friendship, the raven made a new black and white dress for the owl. The owl loved the dress and in returned wanted to make the raven a white dress. Since the owl wanted this dress to fit perfectly, it asked the raven to stand completely still for the fitting. But the raven would not cooperate and began hopping back and forth. The owl kept pleading for the raven to stay still, but the raven kept on fidgeting. The owl finally threatened to pour a blubber lamp all over the raven if it did not stop moving, but the raven continued hopping about and would not sit still. This was the last straw for the owl, and it emptied a blubber lamp with its entire black substance all over the new white dress. The raven cried out in dismay that its new white dress was ruined, but ever since that day, the raven has been black all over.
We stumbled upon this Inuit tale on the raven changing colors in the book, The Raven: Soaring Through History, Legend & Lore, by Lynn Hassler