Bryan McAllister’s personal reference notebook
July 27, 2026Short & citedBlog
Civic Viewpoint.
A quiet encyclopedia with a personal desk
Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
Everyday Life • Color

Yellow

Yellow is a color in the visible spectrum, generally described as lying between green and orange, with a dominant wavelength around 570–585 nanometres.

Updated July 27, 20261 min readCited sources

Yellow is a visible-spectrum colour between green and orange, typically with a wavelength of 570–585 nm. It serves as a primary colour in printing and painting, and a secondary colour in digital displays.

Physical and technical definition

Yellow occupies the visible spectrum between green and orange, with a dominant wavelength around 570–585 nm (exact range varies by source).

Color theory and mixing

In subtractive colour systems like paint and printing, yellow is a primary pigment. In additive RGB systems (screens), it is a secondary colour created by mixing red and green light at equal intensity.

Cultural symbolism

Yellow carries varied symbolism: in Western contexts it often represents happiness, optimism, and amusement, but also caution, cowardice, or envy. In parts of Asia, such as China, it historically signifies royalty and honour.

In short

  • Yellow is a visible-spectrum color between green and orange.
  • In subtractive systems (painting, printing), yellow is a primary color.
  • In RGB systems, yellow is made by combining red and green light.
  • Yellow's symbolism ranges from happiness and royalty to caution and cowardice.
Canadian angle

Canadian survey data cited in general references places yellow among the colors most often associated with amusement, gentleness, humor, happiness, and spontaneity.[1]

Quick questions

What is yellow?
Yellow is a visible-spectrum color between green and orange, commonly associated with light, sunlight, and warmth.
Is yellow a primary color?
Yes in subtractive color systems such as paint and printing, but not in RGB screen mixing, where it is a secondary color.
What does yellow symbolize?
It is commonly associated with happiness, optimism, and amusement, but can also represent caution, cowardice, envy, or sickness depending on the culture.

Sources

  1. Wikipedia — https://en.wikipedia.org/wiki/Yellow
    Supports: Visible-spectrum placement, approximate wavelength, CMYK/RGB roles, and cross-cultural associations.
  2. Encyclopaedia Britannica — https://www.britannica.com/science/yellow-color
    Supports: Scientific description of yellow as a visible light wavelength and its place on the color wheel.
  3. Britannica Dictionary — https://www.britannica.com/dictionary/yellow
    Supports: Dictionary senses including color meaning, cowardly usage, and yellow journalism sense.
  4. Cambridge Dictionary — https://dictionary.cambridge.org/us/dictionary/english/yellow
    Supports: Basic color definition and additional dictionary senses, including offensive ethnic usage and fearfulness.