I'm trying to change the groves in the leather material below from black to blue (sample of the blue also below). I can't figure out how to select just the black grooves in order to change their colour or find a tutorial regarding the issue. Any help would be much appriciated.
I tried masking out the dark areas. Then put your purple color layer under it. It turned out looking almost black. It is the requested color. It shows up if you zoom in. The second image I attempted to increase the purple color intensity to bring out the desired color in the overal image. Let me know if this is what you had in mind.