I'm already completed most of the 1920s,30s,40s and 50s shirt template for all the classic World Cup kits collection. The latest template already is the mens-dress pattern shirt.
I'm also looking for the correct answer for these England 1950 away shirt blue colour. From the movie The Game of Their Lives (2005 film), The film details the true story of the 1950 US football team which, against all odds, "U.S. vs. England, U.S win 1-0. England away shirts in navy blue and had a white number (photo below).
From my references at the EnglandFootballOnline, noted that England away shirt that time in blue and had a red number.