Low SAT Essay scores

Applying to College
1

I scored pretty well on the SAT last time I took it (1580), however my essay score was low - only a 15 total (6/3/6). My understanding is that most colleges don’t consider the essay score anymore, but the UC schools still do… will this negatively affect my application or will they not pay much attention to this? I really don’t want to retake the SAT…