COLOURS TO AVOID!!!

I hope this is a worthwhile thread, if not just ignore it. To cut a long story short, wasted all day today putting on a colour where the reciepe was wrong, you know one of those colour that just doesn't come out right, I'm sure you have all had them. So if a customer asks you (dulux users out there) for DULUX STAR CROSSED mine was in diamond matt, the colour formulation is incorrect, it comes out looking a light pinky/lilac instead of a light grey with blue hint, nightmare!!
If there are...

COLOURS TO AVOID!!!