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Light and shadow are two of the
most challenging problems facing a painter. Painters can't
harness real light and shadow; instead they must rely on subtle
gradations of color to create the illusion.
Rembrandt, Self-Portrait, 1634. Galleria
degli Uffizi In general, I
use "light" in painting to mean all those areas which are
directly lit by a light source. For example, in this
Rembrandt self-portrait most of his face, the glow behind him,
some of his hair, and the front of his coat are in the light.
The "shadows" are all those areas which fall outside of the
light. To demonstrate the division between light and shadow, I
cut and pasted squares of color taken from this painting, and
divided them into two groups below.
Shadow
Light
On the left are squares taken
from the shadows from his face, coat, hair, and the wall.
Notice how extremely close in tone they are.
On the light side, there is a
larger range of colors and hues.
The thing to understand is that in the light areas
the painter has more freedom with the whites, oranges,
grays, yellows, blues, greens etc. But, in the shadow areas,
the painter must be very careful to keep the shadows
homogenous. Rembrandt painted all the shadows as if they
were covered by a dark veil.
Monet is another painter
known for his wonderful light, yet he is quite different from
Rembrandt.

Monet, Impression, soleil levant,
1872. Musée Marmottan Monet
Here Monet is not making dark shadows, yet he is
making his shadows homogenous by linking them with a blue hue.
It is as if he placed all the shadows under a blue filter.
In Monet's light areas he has
painted both warm and cool colors. If you squint your eyes
looking at the color charts below, you can see the larger range
of color in the light section.
Shadow
Light
Both Rembrandt and Monet are doing similar
things; their shadows are very subtle and they use both warm and
cool colors for their light areas.
I hope you enjoyed seeing shadow and light in
a fresh way.
Michael Newberry
Santa Monica, October 2009 |