《旧唐书·本纪·卷五》
二十一日，命令文武官员三品以上穿紫色官服，金玉带；四品官穿深绯色官服，五品官穿浅绯色官服，都是金带；六品官穿深绿色官服，七品官穿浅绿色官服，都是银带；八品官穿深青色官服，九品官穿浅青色官服，都是黄铜带；普通百姓穿黄色，铜铁带。
戊戌，敕文武官三品己上服紫，金玉带；四品深绯，五品浅绯，并金带；六品深绿，七品浅绿，并银带；八品深青，九品浅青，鍮石带；庶人服黄，铜铁带。
On the 21st, ordered the civil and military officials of the third rank and above to wear purple official uniforms with golden jade belts; the fourth-rank officials to wear dark crimson uniforms; the fifth-rank officials to wear light crimson uniforms, all with golden belts; the sixth-rank officials to wear dark green uniforms; the seventh-rank officials to wear light green uniforms, all with silver belts; the eighth-rank officials to wear dark blue uniforms, the ninth-rank officials to wear light blue uniforms, all with brass belts; ordinary people to wear yellow with copper and iron belts.