Photoshop tinting problem...

I've always had this issue with photoshop, and it's really beginning to bug me.

Photoshop seems to add a purplish tint to my blue icons. Things that look blue to me otherwise in other programs or websites come off more as purple in photoshop.

Example: This icon is the original icon I've been working with:



But it looks purply in PS. I screencapped it to show you:



Does anybody know how I can fix this?