Just so all my loyal readers don't have to spend the rest of the weekend in suspense about the color of paint in my hallway, I will dash off this quick update post. First and foremost, thanks for all the thoughtful supportive comments yesterday. They were much appreciated in my hour of annoyedness.
To break the impasse we were experiencing here (because everyone else in the house loves the color and cannot appreciate my dilemma, and furthermore rolls their collective eyes in a "here we go again" sort of manner), I decided to take action by inviting other people over to get their opinion. I must admit that I stacked the deck with people who are, by blood relationship, required to take my side on all matters. Unfortunately, it did me no good. They decided to be impartial and took my LSH's side. The paint color is great, it really brightens up the house, what did I expect when the color was called "tawny bisque," yada yada yada.
In other words, I am the only person whose teeth are set on edge by this color, which I guess is an argument for leaving it as is. It certainly undermined my position that the color had to be changed right now.
In truth, most of the color clash problem could be eliminated by changing the living room wallpaper. And therein lies the home decorating rub. You fix one thing... and then the rest of it looks terrible and needs to be fixed, and you have unleashed an avalanche of work and decisions. Blech. From now on, I will just live with the color of drywall on my walls.