Re: Grey coloured suit...
A lot of colors look beautiful when contrasted with grey or grey with sliver looks good alone.
When choosing a color though you have to think about what look you are trying to acheive.
I wouldnt mix grey with dark standard colors like red or blue because they are more mature contrasts but if you are going for the mature look go for 'em.
I loved the grey gharara Aish is wearing in Umrao Jaan in the song Main na mil sakoon jo tumse