Yes, those will work for a small system for greens.
As to color, greens will grow under more light spectrums than hobbyists care to admit.

If you shelf or shelving is larger, the square-ish panels that run about 45 actual watts, are great. These have blurple light, which works great, but looks kind of awful.

Amazon.com: LED Grow Light Full Spectrum Panel Indoor Plants Growing Lights Plant Lamp for Seeding Vegetable Flower (45W, Silver) : Patio, Lawn & Garden$16.55

I still use a couple of these, in my garage, for starting my Spring seedlings.