My everyday makeup is either a smokey eye or beige/bronze/etc. I usually just do a very neutral eyeshadow with eyeliner, it's enough for me.
If I do wear color, I love to use MAC eyeshadows. I love Mineralize eye shadows by MAC..but most of the colors are very subtle and blend in with silver/grey liners. I do have like 12-15 pigments that I use very sparingly right above my eyeliner for a pop of color. If you buy some pigments, I can give you some of my favorite colors. I suggest getting vanilla pigment, btw. It goes on as a light shimmer and a little goes a long way so it lasts forever. I love it..gives shimmer without color. So when you don't want crazy colors on your eyelid, you can just apply this for some sparkle