Okay this might be difficult to follow, and I apologize for that. I have an image that I'm converting to a pattern. I turned it into a grid of colors, changed the mode to index, made a color palette, and all that. The issue I have is that I'm restricted to using certain colors, which are on another palette. I'm also restricted to RGB values, so can't convert to anything else... well I guess I could since they're both in the program... anyway... What I want to do is take my image color palette and compare it to the restricted palette and have it find the closest match. Another way I can describe it is, when I change my color palette, I want my image to also change into the closest matching colors on that palette. Is this possible? I don't want to have to visually compare them side-by-side... Too many shades of green and blue... Thanks!