Part of the tricking of the pompous and self-righteous steward Malvolio in Shax's 12th Night is to induce him to wear yellow stockings, incompatible with his usual puritanical form of attire, in the presence of his mistress, Lady Olivia, who he has been gulled by a fake letter into believing was in love with him. The obvious point of the colour here was its incongruous garishness, especially in the house of mourning that Olivia purports to be maintaining for her dead brother to avoid the unwelcome solicitations of her wooer, Count Orsino. It is also, we are told by her chief Lady-in-Waiting, "a colour she detests", tho no particular reason for this is given

Yellow obviously a particularly bright colour. Also, of course, the colour of gold, with its many symbolic overtones.

Whether any of this of help within parameters of this thread is for others, esp OP, to judge.

~M~