Blue, with dots.

Helen wore a housedress every single day of her life, except for funerals, so it was no surprise she would have been gifted with  one on her 80th birthday.  She loved presents and as always opened each one enthusiastically and gratefully. But when she opened the box containing the navy and white housedress, she looked a little crestfallen, and slid the box away a little too quickly.  Later she would confide, "I don't really like the dress.  It has polka dots, and polka dots are for old ladies."