Chubs are often seen in the turbulent waters where the swell surges around rocks. This one is a brassy chub, so named for the touches of yellow around mouth, eyes, and gills. Gotta have a soft spot for anything called a chub.
In my attempts to identify what I see in the water, I use John P. Hoover’s book The Ultimate Guide to Hawaiian Reef Fishes, Sea Turtles, Dolphins, Whales, and Seals. His website is hawaiisfishes.com.