Lightfastness

Lightfastness Information on a Paint Tube Label
How To Do a Simple Lightfastness Test for a Paint Color
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Art Glossary: Fugitive Colors
Art Glossary: Pigment
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Their tests represent the most absolute classification in use for painting materials, and ASTM codes are employed by all manufacturers of fine art paints to identify their colours in terms of lightfastness and permanence, ...

LIGHTFASTNESS
the strength of pigment to hold its color. The better the lightfastness the less fade over time.
MONOCHROMATIC
a painting that uses only one color in a variety of values (including black and white).
NATURALISTIC ...

He claims that pigment printing is the best photoprocess for color, tone and lightfastness known to date; indeed that it is the only color photopositive process that has its longevity, ...

See also: Painting, Acrylic, Photography, Creativity, Acrylic paint