narju -naj- gismu

x1 is orange [color adjective].

See also skari, blabi, xekri, kandi, carmi, xunre, pelxu, solji.

In notes:

blabi
x1 is white/very-light colored [color adjective].
carmi
x1 is intense/bright/saturated/brilliant in property (ka) x2 as received/measured by observer x3.
kandi
x1 is dim/dull/pale/non-intense in property x2 (ka) as received/measured by observer x3.
pelxu
x1 is yellow/golden [color adjective].
skari
x1 is/appears to be of color/hue x2 as perceived/seen by x3 under conditions x4.
solji
x1 is a quantity of/contains/is made of gold (Au); [metaphor: valuable, heavy, non-reactive].
xekri
x1 is black/extremely dark-colored [color adjective].
xunre
x1 is red/crimson/ruddy [color adjective].
najnimre
x1 is an orange of variety x2.