In the coloring page, the ninja turtle has green skin and a sturdy brown shell. Her hair is a deep rich brown color and she wearing a white mask with distinct green stripes running down it. Around her waist is a royal purple belt, while in her hands are two warrior swords. To lend life to the scene, her yellow headband contrasts the colors and brings together the colors of her mask and belt.
If I were to color this page, I would pick colors that contrast in a pleasing way. I would choose a very dark green and some darker tones of brown for her skin, shell and hair to give her a mysterious presence. I would use a bright yellow for her headband to provide some contrast, as well as a lighter purple for her belt. Finally, I would give her mask and swords a vibrant green hue to really bring them to life.