I like Mr Hobby Aqueous paints but for Luftwaffe aircraft aficionados, Mr Hobby does not have Rlm 76 (H417) available in the USA. I did find an excellent Rlm 76 formula using USA available Aqueous paints in Hasegawa's 1/72 Fw190 A-8 instructions:
This Rlm 76 formula is 85% H61 (IJN Grey) and 15% H67 (Rlm 65) (for example - using cheap and eBay available pipettes, 17 drops H61 and 3 drops H67). I thin them with either Aquoeus thinner or my preferred thinner, Mr Leveling Thinner, about 1:2 (paint to thinner). I use a 3m respirator, which is good practice whether using acrylic or lacquer paints and thinners.
Mr Hobby Aqueous Rlm 74 and Rlm 75 are available in USA as well, H68 and H69 respectively...these are very accurate renditions as well.