Do yourself the favor of reading the "Guide to Simple DIY Screens" Sticky at the top of the Thread page.
On the second page you'll find plenty to read and absorb as far as why a Gray Screen would be best (...the brighter the PJ, the more a Gray can help...)
You'll also find several simple Neutral Gray tint formulas the Paint Tech at Home Depot or Lowes can make up. Ask for a Flat Latex Interior Enamel Base. Such paint should be easy for you to roll.
I hope you'll take just a little more time at what your doing. I cannot impress upon you the importance of doing so enough, but even if I did, your post reads like no few others I've seen over the years...where people are determined to just splash up any old paint because their existing wall looks so good. Almost always, they regret that choice. Even just a little care in selection can reap great benefits, and the choice need not be complex or expensive. Just the right choice. You cannot be the judge because you have no reference or experience, and if your unwilling consider sage advice, or to make even a modicum of effort to find out what might be better / best for you and your situation, then really, what is the reason to even bother?
Simply put, many of us on here are dedicated to helping people such as you NOT
make basic "Knee Jerk" decisions that result in mundane or worse results. As I said above, even the right "Basic" choice can be a great choice...if it's at least the right choice.
And Brother, take this for the absolute truth....a "White" surface is NOT
what you want. Look instead in the Sticky at Grays in the N8.0 range.
Now...go knock yourself out.
PS....if you want to go with something without reading past this post, just go with Silver Screen mixed in Behr 1780 Interior Flat Enamel, applied with a 1/4"Nap 9" "High Quality" Roller.