Dunn Edwards can mix the SW color; just tell them the color and they have access to the formula

yes, the gray tones are hard to work w/those tiles. I just had a complete reroof during the paint change. The entire neighborhood (I'm in North OC) has those heavy pink/terra cotta cement tiles. but they've faded after 40 years. I couldn't wait to get something diff. If you want to remain period to your home, stick w/the white/yellows for the stucco, and the greens/blues or even black for the trim. have you thought about doing black? It's very handsome this is a creamier white w/more of a dark bronze trim blue or green always works I did find one with a dark charcoal gray and a swiss coffee stucco. this color gray would work. You need a true gray with no blue or yellow undertones. this is a 1930's in Los Feliz I still like the black though i'm jelly of your home. vintage spanish are my favorites. I'd love to redo one. (you in the highland park/echo park/ lincoln hts area?)

we use Benjamin moore like the regal the aura. Kelley more is good for mid level jobs

It wouldn't hurt to check out DE's 10 High Hide whites. Because many aren't aware that most colors of whites (brand doesn't matter) can require 3 or 4 coats. White paint colors are notoriously awful when it comes to hide. You have to get chips because swatches online for any brand/color of white is tragically skewed. https://www.dunnedwards.com/colors/curated-collections/high-hide-whites