In my experience you don’t even need camo to blend in. I’m a self-proclaimed military autist and my entire wardrobe is earth tones. That alone is enough to startle people on the trails when they’re not looking ahead and I suddenly appear in front of them on my bike. Camo obviously helps, but it’s not about perfectly blending in - it’s about not standing out. When I spot people in the woods it’s always because of a pale face or hands, or some brightly colored or white piece of clothing. Black stands out a lot too, but anything gray, brown, or green usually disappears into the background unless you’re staring right at it.