The supportive comments about repainting were well-taken, but unfortunately, this is such a large space that it would require four gallons of paint and at least two days of painter time, plus scaffold rental fees. In other words, it is far, far cheaper for me just to learn to live with it. So I am stuck. As requested by several of you, I am posting an illustrative photo for your edification:
No doubt, some of you will love it, some of you will agree with me, some of you will think I am nuts, and most of you will be seeing entirely different colors thanks to the magic of browsers and computer screens. This is in line with the in-person reactions. People love it, people hate it. People think it has hues of gold, peach, yellow, orange, brown, tan. People think it goes with the woodwork, it doesn't go with the woodwork.
For my part, I finally figured out what was bugging me about it: it has peach undertones. Just putting a label on it helped me to calm down a little. I have no idea why this should be the case.
And now, back to the regularly-scheduled programming.