http://dictionary.reference.com/search?q=bisque
"X11 bisque - also known as 'Ousterhout beige' - was for a long time the default color of Tk GUI's."
grid [label .l -text Bisque -bg #ffe4c4]
D. McC: For those who still like it (as I do), this works well:
tk_setPalette background bisque