your just seeing it under natural light here. Show lights screw everything up. Look at some pics of the orange under show light, looks nothing like it does in person.
Besdies, these 3 stage paints on the speeds don't really "shine" unless there's a lot of light on them. Look at your orange on an overcast day vs a sunny one, it goes from a peach to a strong orange with a goldish tint to it right? Well, the grey has silver under it as your orange has yellow under it, so same effect, different color.