The Ralph Lauren PH 4187 sunglasses actually feature a dark Havana frame color, which is a brownish tortoise shell pattern. Here's a corrected product description:

The Ralph Lauren PH 4187 5003/73 52 18 145 3N sunglasses are a stylish and sophisticated accessory designed by the American fashion brand Ralph Lauren. The frame is made of high-quality acetate in a dark Havana color, featuring a brownish tortoise shell pattern. The lenses are a stylish grey shade, and they provide excellent UV protection, ensuring that your eyes are safe and comfortable on sunny days. The rectangular shape and keyhole bridge design of the frame create a classic and timeless look, while the slim arms tapering at the ends provide a comfortable fit. The Ralph Lauren logo is discreetly placed on the temples, adding a touch of elegance to the design. These unisex sunglasses are suitable for a variety of occasions.