I've considered using Chantilly Lace or Oxford White on trim, but I agree, if I were using Chantilly Lace on walls, I'd just use the same color on trim, but go with a higher sheen. I'd rather use the same (as the different sheen levels will make them look a bit different, but still matched, I think), than a "slightly" different white that makes it look you tried to match and missed the mark.
Q