So who seems to have nail the right color for a new hope that doesn’t conflicted other colors in the film like in tantave scene the inside of the ship getting the right colors without messing with the storm troopers color vader’s color and c3po’s and r2 d2’s color etc. this or Neverar?
As far as I know, it is the goal of no one to produce some sort of color continuity saga. The goal is to get them looking like they’re supposed to, not to make them match. There is no reason to do that. Films are graded and not necessarily in life-like or consistent ways. Colors across different films do not “conflict” with one another. R2 is a different color in different films because R2 is literally a different color.
Honestly, if you want consistent grading the best bet is probably to just grab the 2011 blu-rays which have a very similar terrible blue cast on 4 of the 6 films. No one here has ever expressed interest in such a thing, as far as I know. And if they did, they would never dream of trying to get them to match the prequels.
Also, in the case of the OT, each movie was shot on a different Film Stock which alone captured color differently than real life. And the films were not “graded” before digital technology, they were color timed using chemicals (more natural color adjusting) so you can imagine the limits of getting colors the way you wish. So in the film, colors can vary subtly from shot to shot(take for example the rebel troopers’ clothing) and so altering the colors for absolute consistency across the whole scene wouldn’t be true.