Leviticus 14:37
He is to determine if the contagion is indeed on the walls of the house, with greenish or reddish streaks, and to determine if it appears to be deeper than the surface of the wall.
Leviticus 13:3
The priest is to examine the skin rash on the body. If the hair on the skin rash has turned white and its appearance is deeper than the skin of his body, it's an infectious skin disease. When the priest has examined it, then he is to declare him unclean.
Leviticus 13:19-20
in place of the boil there remains a white swelling or a bright, white-reddish spot, he is to present himself to the priest.
Leviticus 13:42
But when in the baldness of his head or his forehead there develops a skin rash that's white or reddish, it's an infectious skin disease that has spread to his bald head or forehead.
Leviticus 13:49
if the contagion is greenish or reddish in the clothing, leather, woven material, knitted material, or with any article containing leather, it's a fungal infection and is to be shown to the priest.