Take it into Photochop and take a sample of the blue, then take a sample of the green. They're exactly the same until it gets so small the purple messes with it and makes in blue for real.
Poor Zev.
I made a short GIF animation with yellow, blue, red then magenta. One colour at a time at below 0.1FPS. Set it full screen in a dark room (unless you're epileptic) and it makes you zone out. Well, it made ME zone out. Use with caution
Sorry to hear that But it sounds like you have a plan One of my guys had white on his lips once, didn't treat it and it seemed to disappear, this is probably different.
Best of luck! 8)