Dorothy's blue and white gingham dress was actually blue and pink. True white looked underwhelming on the big screen due to the Technicolor process. Dress worn by Judy Garland in 'The Wizard of Oz,' lost for decades, to be auctioned Dorothy's blue and white gingham dress was actually blue and pink. True white looked underwhelming on the big screen due to the Technicolor process. Sky Blue Satin Strapless Sweetheart Side Split Evening Long Prom Dress Wish Gown Simple blue satin long prom dress, blue long evening dress fg4854 formalgowns