Just so everyone don’t get surprised, if you have not seen The Mask during its original run in 1994 and the Blu-ray is how you’ve always seen The Mask, you’ll notice that his face in the 35mm version is not the same green. That’s normal, because for the Blu-ray, I think they updated the mask colours to match the comic books more, but it’s not how it was original filmed.
Here’s a clip to see the difference: