This is an excellent ink. Performs very well on all papers, premium down to copy and note paper. The color is a dark rich blue, darker than the standard business blue inks from mos...view moret of the brands. This is not a blue/black, but a bold navy blue. It has more brightness and pop than the blue/black inks. The ink is ISO rated as an archival ink. I use this for business. Definitely recommended. view less