Textured Beige
If black nor white is quite right, a beige can split the difference. But solid beige can look too much like an office cubicle from the ’90s.
A light to moderate scattering of colored vinyl flakes can break up that solid color and add some visual flair, as in this floor from AmorPoxy. Scattering flakes can also hide any unfortunate adhesive drips or paint spills.