Currently doubting my MAC NC45 status i've been wearing nc45 in most things MAC for almost 4 yrs,
Revlon Colorstay: Caramel for Oily/Combination (near summer have to add in a pinch of Cappuccino)
Covergirl Queen all day flawless (3-in-1) in mix of q810 and q815
Covergirl Clean liquid Oil Control in Tawny/565
Estee Lauder Doublewear in 5N2/Amber Honey
Black Opal ... Nutmeg (w/ a pinch of Truly Topaz)
Benefit hello flawless! custom powder cover up I lean to 'Nutmeg' due to the undertone but the color of Hazelnut is better
E.L.F. foundations i'm pretty much 'Almond'.
BH Cosmetic foundation D2/Mocha (though I can see myself mixing in a pinch of D3/Deep Cocoa around the high of summer)
Most things MAC NC45 currently or 7.5 in Matchmaster (tho I wish there was a 7.25)
And....that's my foundation experience so far ... need to get matched in certain MUFE, Dior, Givenchy, Nars, Lancome, BlackUp, Sleek, Iman, CoverFX, SheaMoisture and Becca products tho.