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 7 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Reese Witherspoon With Dirty Blonde, Medium-Length Hair By 2004, Witherspoon had returned to dirty blonde. Previous Next Start Slideshow HairCelebrity BeautyHair ColourCelebrity HairReese Witherspoon