Something ... blue?

I work in the office of a factory that makes ink. That means that I sometimes get it on my hands. Like this morning, for example.

It's about equally red, yellow, and blue depending on what our customers are calling for, but I do think we have more shades of blue than any other color. When I get ink on my skin, I usually don't notice it until after it's happened and my finger makes marks on the inventory papers I got the ink from in the first place. I've also had it all up my forearm. I had better be careful any time I know I'm going to be photographed coming up. I don't think blue fingertips count as something blue.