What Blue Was That?

I have been asked what blue I was using in that background. It was Daniel Smith Verditer...supposedly low staining but I am not being to successful in it's removal...I only try to buy low staining colors for this reason. The other problem is it is a color mix...I wish I had the tube to look at what colors were used...I never use mixes either...so there is rule 2 broken. I also never use a new color in large areas until I have tested it...broke that one too! HHHa! Obviously not doing well that day! This blue is stunning but it separates alot, even in my little dish I made up of it. Also I think it might work better on 140# paper which would be less thirsty...the 300# was soaking it up pretty fast I think. Different papers react differently...I wanted to try this theory out but cannot find the tube and I think because I was working so fast I wonder if in turning the board my tube fell into the garbage can and got taken out because it has totally disappeared! Ha! Evidently I am not suppose to use that one again! :) I will not be working on this very much for awhile because I have a demo to work up for a group of about 100 artists. Then I have a demo for the RRWS and then a three day workshop all by the the first weekend in June and with everything happening as it has, I have not had the time to pull things together. I think what I will do is maybe post some of my thoughts on the demos to see what you think...hope I have the time. I will be discussing values for them and so have to work up the demo...a dear friend has lent me a photo actually because it showed exactly what I was thinking about and it will save time to use hers for now...it is sure great to have friends!
Also I have been asked what blues do I use...and so here is what is on my palatte right now...Indanthrone blue which is my favorite blue...it mixes well with everything. Indigo is there...just playing with it again because I normally do not have it on my palatte but it does help to go darker in mixes, Prussian Blue which I added recently and have not had on my palatte for about 7 years but testing it again, Phthalo Turquoise which I like to mix in my shadow greens, and Cobalt Teal Blue. I think this would change if I did more landscapes but since it is mostly still life work these seem to be the colors I need. I maybe need to try more landscape blues to see how they work. I have Cobalt but since it is a granulating color it is not good for glass etc so that is sort of my criteria. Hope this answers a few questions!