紅【くれない】
deep red, crimson, rouge, lipstick
紅白【こうはく】
red and white, colours for festive or auspicious occasions (colors), two teams, two groups, Kōhaku Uta Gassen, annual contest between male and female popular singers on New Year's Eve (sponsored and broadcast by NHK)
紅茶【こうちゃ】
black tea
口紅【くちべに】
lipstick
紅葉【こうよう】
autumn colours, fall colors, leaves changing color (colour), leaves turning red, red leaves, leaves turning yellow, yellow leaves, (Japanese) maple (Acer japonicum), venison, layered colors in garments, resembling autumn colors
深紅【しんく】
deep crimson
紅梅【こうばい】
red-blossomed plum tree, red Japanese apricot