Primary Blue - Cyan [PB15:3 phthalo blue structural greenish variant] Maimeri Blu
Berlin Blue [PB15:1 - Phthalo Blue variant, reddish], Maimeri Blue watercolor tube, 15 mL.
Cupric Green Deep [PG7--Phthalo Green] Maimeri Blu Artist Watercolors, 15ml tube. $8.99 at Blick.
Cerulean Blue [PB36—Cobalt Chromite Blue Green Spinel] Maimeri Blu Artist Watercolors, 15ml tube. $19.39 at Blick online.
Smalt Genuine - Daniel Smith (I think this is another name for Cobalt Blue, genuine, but no info available on the color so far)
Manganese Blue Hue- no pigment info. Daniel Smith Extra Fine Watercolors, 15 mL tube. Gorgeous color!
Indanthrene Blue [PB60--Indanthrene Blue] Daler-Rowney Artists' Watercolors.
Cobalt Blue Deep DaVinci watercolor tube, 15mL.
Cobalt Blue- Daler & Rowney Professional Watercolors, 15mL tube, same price (approx.) as Da Vinci's Cobalt Blue, excellent color, not grainy!!! Also, they have Cobalt Deep.
Ultramarine Blue - M. Graham Artists watercolor tubes. Dickblick.com