I just sent a email. And I said it was more or a beige, but it looks nothing like your examples of beige. It is darker than what you call stone, bronze and clay and lighter than dark bronze. But since two are going in the garage and two in the laundry room matching perfectly isn't crucial. If it doesn't match I would buy four so both to those in the laundry room match.
I spoke with customer service today and she speculated it might be most like part number 39-286 although it is shorter, but as I said it doesn't have to match perfectly as they go into the garage and laundry room. I will need 4 if they don't match and 3 if they match. But the windows are 9 years old, so matching may not be possible.She said she would give you a heads up. I remeasured and got the ones on the picture. The height to the middle of the bore is 2 15/32 inches. The bore diameter is 3/8 of an inch. I also put the mesauring tape on a picture. I also took a picture of the actual spindle on the window and the diameter form spindle to spindle is about 11/32 of an inch. There is a smaller part at the very end of this peiece furthest form the window which measure about 7/32 of an inch. I also saw a updated list of our discussions and it said "MORE INFO NEEDED = An expert has requested pictures or measurements of your hardware" I hope you did get my pictures but as I said it did not apparently have all the measurements you wanted. I hope the pictures I send today will have everything you need. If not contact me.
Thanks,
Armin