I'm NC45. I tried the shade below but still felt it was darker when it came to my neck. My chest is a lot lighter than my face so I like to try to match them to the same color so I won't be two different colors lol I actually felt like Sey was lighter than Malaga on me. Maybe I need to go back and get sample lol just to see how it all compares.
If your an NC45 Seychelles may be a tad too dark. I went to order Seychelles from Sephora online and its been sold out this whole week. Seems to be a shade that compliments many complexions. Definitely get a couple of samples and try them out.