Well first i'd go ahead and try the white if that dosent work . . . . . I'm gonna get my color wheel.
O.k. add a dark yellow 50/50 , If its still too dark then add the white . I hope that dose the trick , But defenetly mix a type of khaki, light beige , or dunkelgelb whith the white first, dont just add white , by what I see it will get kind of pinkish. good luck to ya'