Green is one of the essential tattoo ink colors in Japanese tattooing. This tattoo ink color reflects the rich green color shades of Japanese kimonos. When tattooed, the color is slightly darker and changes its hue from blackish green to a perfectly balanced green (about 20% lighter as it appears).
All dragon colors on Mario Barth's back are designed and specially mixed by Horitoshi I.
Dragon Green Light Tattoo Ink - SDS Sheet