Definition

Noun: * A color that, when subtracted from white light, yields a primary color of light: This term refers specifically to one of the three pigment colors—magenta, cyan, or yellow—that are fundamental in color subtraction. When these colors are used as filters or pigments, they absorb (subtract) one primary color of light (red, green, or blue) and transmit or reflect the others. Combining them in different proportions can produce a wide range of other colors.

Usage

• This is a technical term used in physics, color theory, optics, and printing.
• It describes the fundamental colors used in processes that create color by absorbing (subtracting) specific wavelengths from white light, as opposed to additive color mixing which combines light sources.
• Example: "In color printing, inks are based on the primary subtractive colors for light: cyan, magenta, and yellow."

Examples

• "To understand color printing, you must first understand the concept of a primary subtractive color for light."
• "A cyan filter acts as a primary subtractive color for light by absorbing red light from the white spectrum."
• "Mixing two primary subtractive colors for light, like yellow and cyan, will produce green."

Advanced Usage

• The set of three primary subtractive colors for light is complementary to the set of three primary additive colors for light (red, green, blue). Each subtractive primary absorbs one additive primary.
• In the CMYK color model used in printing, 'Key' (black) is added to the three primary subtractive colors for light (Cyan, Magenta, Yellow) for practical depth and contrast.

Variants and Related Words

• Subtractive primary color: A more common, shortened synonym.
• Cyan, Magenta, Yellow: The three specific colors that are the primary subtractive colors for light.
• CMYK: The color model that uses these three colors plus black.
• Primary additive color for light: Its conceptual opposite (red, green, blue).

Synonyms

• Subtractive primary
• Process color (in the context of printing)
• Secondary color of light (Note: This is a contextual synonym, as the subtractive primaries are the additive secondaries, and vice-versa.)

Related Concepts

• Color subtraction: The process by which pigments or filters create color by absorbing parts of the white light spectrum.
• Additive color mixing: The process of combining colored light sources (red, green, blue) to create other colors.
• Absorption spectrum: The range of light wavelengths absorbed by a pigment, which defines it as a primary subtractive color for light.

Noun

1. any of the three colors that give the primary colors for light after subtraction from white light
   • the primary subtractive colors for light are magenta, cyan, and yellow