Orange-red

Calcium, heated with a Bunsen burner, turns the flame orange-red.

The colour of a ruby can vary from a fiery orange-red to a deep purple or crimson.

All the natural dye materials came from the surrounding fields; leaves from olive trees produce a light yellow, madder root dyes wool orange-red, henna produces brown or dark green, and, my favorite, carrot greens make a brilliant, sunshine yellow.

Cambodian Tailorbird (Orthotomus chaktomuk), a small, light and dark grey bird with an orange-red tuft, was described by scientists as "hiding in plain sight" in Cambodia's capital Phnom Penh when first spotted in 2009.