raw_umber has definitions from the fields of geology,color
1
[ noun ] (geology,color) greenish brown pigment

Used in print

(Norman Kent, "The Watercolor Art of Roy M. Mason"...)

alizarin_crimson , orange , raw_sienna , raw_umber , burnt_sienna , sepia , cerulean_blue , cobalt_blue , French_ultramarine_blue , Winsor_green , Hooker's_green 2 , cadmium_yellow pale , yellow_ochre , Payne's_gray , charcoal_gray , Davy's_gray , and ivory_black '' .

Related terms

umber

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