astra militarum

Hey, been a longtime lurker on this forum but I have recently managed to collect a large(ish) Astra Militarum Army and am wanting to sell it on (in order to keep feeding my Undead Legion and Necron armies!) Please check it out Warhammer 40,000 Imperial guard/Astra Militarum Infantry/Baneblade...

Anyone have any suggestions for a desert yellow replacement colour? I'm looking at Tallarn Sand but it appears darker and more saturated. I use desert yellow as a base then carefully pick recesses with chestnut ink and highlight with bleached bone. (ancient colours I know) I started an IG army...