Jagged lines creating white border

[inquestflash]

Hi forum. 

Ive made this shape UV metre with some of my shapes slanting on a curve. The black lines seems jagged, most likely to my screen resolution (1920 x 1080). But as seen in the example there's a slight white border where the black colour shape and bend is. is there a way to eliminate this problem,?

Thank you.

[lambiloon]

Hi you made that black UV meter in illustrator ?

[inquestflash]

Yes, it's in Illustrator. 

[Scott Falkner]

I think it’s just antialiasing between the black and the dark grey. What is the colour mode and what are the colours for black and dark grey?