Hello gents,
Regarding the emblem, the colour code in George Hoegel's emblem book shows black (plus white outline).
For the U-190, it isn't that obvious what colour is inside the black outline since this region of the tower is dirty and weathered. In quite a few areas the inside colour looks the same as the weathered / dirty areas of the tower, so perhaps only a black outline may have been used.
If you don't find a resolution to this question you could go for the U-190 in white, as per other photos of the boat in Canadian ports.
Cheers,
Dougie