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 1 of 12 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by Reese Witherspoon (@reesewitherspoon) on Aug 20, 2019 at 9:42am PDT Share This Link Copy ← Use Arrow Keys → 1 Reese Witherspoon's Childhood Photo of Her Naturally Brown Hair Colour Witherspoon posted this childhood photo indicating that she is a natural brunette. Previous Next Start Slideshow HairCelebrity BeautyHair ColourCelebrity HairReese Witherspoon