I would color this adorable hedgehog by using a variety of brown and white shades. I would start by coloring the body of the hedgehog with a light brown shade, and gradually build up to a darker shade near the edges of the quills. The white stomach should be shaded with different shades of white, to create a soft and peaceful look. I would then use dark brown to color the black eyes, and a slightly lighter shade to color its small black nose. Finally, I would use two different shades of brown to color the quills, completing the picture.