Popsugar Beauty Hair Reese Witherspoon's Natural Hair Colour Reese Witherspoon Might Be "Legally" Blonde, But That's Not Her Natural Hair Colour 2 September 2019 by Sarah Siegel View On One Page Photo 2 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Reese Witherspoon With Dark Brown Hair Witherspoon attended an event in 1993 with her naturally dark brown hair. Previous Next Start Slideshow HairCelebrity BeautyHair ColourCelebrity HairReese Witherspoon