Your camo isn't THAT important. Wear PLENTY orange, with a black pattern (if possible) to help break up Your profile, but Deer can see blue, as in blue jeans. Another precaution worth mentioning, not to mention fairly cheap, is UV Killer "Laundry Detergent", and Scent Killer "Laundry Detergent".
Regular laundry soaps have UV Brighteners, which deer can see. Wash all Your clothing (including socks, and everything else) in the Scent Killer first (if You decide to use it) then wash Your outer clothing in the UV Killer. All this sure beats spending Hundreds of dollars on Scent Blocking clothing.
But yes, Your Duck Hunting Camo will suffice. If You're looking to purchase new camo, I use God's Country Late Season. It's lighter than most camo patterns. An Early Season is also available, which has a few green leaves, but deer and other animals aren't green, and they're hard to see, especially in the woods.
Try to refrain from much coffee before a hunt, because deer will pick up the scent of what we all know follows coffee. Bring along a few small bottles of water and some food. I prefer granola bars. Granola bars pack small and light and provide steady carbs/energy. Cascadian Farm Organic Granola Bars are the very best, and cost about $3.50 for a box of 6.
Lastly, granola bars could/maybe/possibly have You toting an all natural Deer Grunt Call...