Breakdown of Al ver los naipes, se quedaron pálidos.
ver
to see / to look / appear
quedarse
to stay / to end up / become
al
upon / when (+ infinitive)
pálido
pale
Questions & Answers about Al ver los naipes, se quedaron pálidos.
Why is se quedaron used here to mean they "went" pale?
Could I use se pusieron instead of se quedaron in this sentence?
How does Al ver translate to "Upon seeing"?
Why does the sentence use naipes instead of cartas for cards?
While cartas is very common and can definitely mean playing cards, it is also a broader word that means letters you send in the mail or restaurant menus. Naipes refers specifically to playing cards, avoiding any confusion.