Have you tried the new Max Factor Eye Brightening Tonal mascara in Sapphire Black? It's marketed as being for people with blue eyes.
It's a dark navy, and a great mascara. I have thin, fair lashes, and it's about the only mascara I've found that gives long, thick lashes in a second.
Oh, and Blinc mascara, if you can find it, has a great dark blue in their range. It's the one that creates 'tubes' of colour over your lashes and it comes off with warm water and gentle pressure.
