Kate Hudson wears a pair of Oliver Peoples Commander sunglasses in the 2008 comedy Fool's Gold.

The color is not officially known but it looks like Java brown polarised lenses with a birch metal frame.

High quality metal sunglasses from Oliver Peoples with silicone nose pads and temple tips for added comfort and fit combined with technically advanced OXP lenses. 8-base lens curve for maximum coverage and UV protection.

Reference: Oliver Peoples Commander - Color: probably Java brown polarised lenses, dark frame