While conceding the subjectivity of colour perception/judgement and so on (and differences with others’ monitors and such) a few details about these impressions……
Aug 15: Creamy Yellow. Aug 19: slightly more Yellow. Aug 26: Peach! Aug 30: Buttercup Yellow.
Early Sep. it started to display hues that I struggled to name but opted for Bronze/Coppery-Yellows.
Then it reddened markedly and even so could not quite equate it to the redness of carbon stars V Aql or of X Sge which was more near the nova’s brightness then.
The last (Oct 5) observation showed a more definite difference to X Sge: it was now fainter than X but looked slightly more toward red-violet.