紅色

red (color) / revolutionary

surname Hong

red / popular / revolutionary / bonus

color / CL:種|种[zhong3] / look / appearance / sex

(coll.) color / used in 色子[shai3 zi5]

pink

red-purple / mauve / prune (color) / claret

red-orange color / dark orange

"The Hunt for Red October", a novel by Tom Clancy

Red Detachment of Women, revolutionary opera that premiered in 1964

red tourism, focused on sites in China associated with the Communist Revolution

(jocular) wedding invitation (lit. "red bomb", because wedding invitations use red paper, and invitees are expected to give a substantial sum of money as a wedding gift)

Khmer Rouge, Cambodian political party

crimson

reddish

deep red / crimson / scarlet

scarlet (color)