(のうたん)

のうたん
noun
shade; density; gradation
1. shade; gradation; depth of color
The variation between dark and light shades; the intensity of color.
(いろ)濃淡(のうたん)つける
To add gradation to the colors.
To express through variations in ink shade.
This watercolor painting uses gradation very skillfully.
2. density; concentration
The degree of thickness or intensity.
関心(かんしん)濃淡(のうたん)ある
There are varying degrees of interest.
There are differences in the degree of each country's response.
There are large differences in the degree of damage depending on the region.

濃淡(のうたん) describes the range between dark and light, thick and thin, or strong and weak. It combines (のう) (dense, dark) and (たん) (light, faint).

LITERAL USE (art/design):

FIGURATIVE USE:

Describes varying degrees of intensity in abstract contexts:

ART CONTEXT:
A fundamental concept in Japanese ink painting (水墨画(すいぼくが)) and calligraphy, where controlling the darkness of ink strokes is essential to artistic expression.