vocabulary : colors

iro : color
kuro : black(noun)
aka : red(noun)
ao : blue(noun)
kiiro : yellow(noun)
midori : green(noun)
chairo : brown(noun)
shiro : white(noun)

when " -i" added,then adjective.

kuroi : black(adjective)
akai : red (adjective)
aoi : blue(adjective)

Kono iro wa kuro desu.: this, color , black, is : This color is black.
Kore wa kuroi desu. : this, black, is : This is black.