NARS Red Square is a warm orange with a matte finish that is permanent and retails for $27.00. In comparison, YSL No Taboo Chili (213) is a warm copper with a satin finish that is permanent and retails for $39.00.
YSL No Taboo Chili (213) is 80% similar — it is more shimmery, more muted, warmer, glossier.