I’m getting a bit off-topic here, but standards agencies are considering a revision to the standard for what counts as “white” light. If passed, lighting sources would be required to use a lower duv (pinker tint) in order to get official certification like an EnergyStar rating. This change is based on a few experiments conducted at different times by different researchers, where the results all gave very similar results. An overview is here, at EnergyStar’s site.
The short version is: They measured from about -30 to +20 mduv, and there were people who preferred every part of that spectrum, but the average was consistently pink. About 5% to 10% of the study participants preferred a positive duv, while about 2/3rds preferred negative duv. The overall average was about -15 mduv.
The “pink” dedomed 519A is only about -4 mduv.
What people prefer and what people view as “white” are a bit different though. For “white”, the results go from about +6 mduv at 6500K to -10 mduv at 2700K. The 519A’s -4 mduv at ~4000K fits right along that line.