coloration depends a lot on environment (local fauna/flora for food source, lighting, and to some degree temperature and water dynamics-visual/physical appearance) but also of course species/genes.
i've seen very orangey ones (sarcophyton tenuispiculatum) and a couple of golden yellow types (s. elegans, s. serenei, and maybe s. subvirde).
there are a couple of green flesh-types too (partial body colors). the popular neon green polyps are more environmental and age-related than permanent traits imo.
but even the 'typical' coloration and traits aren't universal to the species ime. for instance, i've seen brownish and golden tenuispiculatums as well as the orangey types.
otoh, there are pinkish sarcos (s. roseum, s. infundibuliforme, etc.) but even those pinkish ones are more fleshy pink though and can turn brownish/tan/beige as well as pinky pink. i've never seen a hot pink sarco though.
anthomastus (similar looking coral to sarcos) can look hot pink but that's an impossible to get coral (ultra deep-water coral), besides speculating on the level of care required.