yellow color

This article is about the color. For other uses, see Yellow (disambiguation).

Yellow
Spectral coordinates
Wavelength	570–590 nm
Frequency	525–505 THz
Color coordinates
Hex triplet	#FFFF00
sRGBB  (r, g, b)	(255, 255, 0)
CMYKH   (c, m, y, k)	(0, 0, 100, 0)
HSV       (h, s, v)	(60°, 100%, 100%)
Source	HTML/CSS[1]
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

Yellow /ˈjɛloʊ/ is the color of gold, butter, and ripe lemons.^[2] In the spectrum of visible light, and in the traditional color wheel used by painters, yellow is found between green and orange. It is a primary color in subtractive color.

Yellow is commonly associated with gold, wealth, sunshine, reason, happiness, optimism and pleasure, but also with envy, jealousy and betrayal. The color yellow is often known as a color with energy. It plays an important role in Asian culture, particularly in China.^[3]

Contents

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• 1 Etymology and definitions
• 2 In history and art
  • 2.1 Prehistory and antiquity
  • 2.2 The Middle Ages and Renaissance
  • 2.3 The 18th and 19th centuries
  • 2.4 20th and 21st centuries
• 3 In science
  • 3.1 Light, optics and colorimetry
    • 3.1.1 In color printing and on a computer screen
    • 3.1.2 Complementary colors
    • 3.1.3 Lasers
  • 3.2 Astronomy
  • 3.3 Biology
    • 3.3.1 Why autumn leaves, daffodils, bananas and egg yolks are yellow
    • 3.3.2 Birds
    • 3.3.3 Fish
    • 3.3.4 Insects
    • 3.3.5 Trees
    • 3.3.6 Flowers
    • 3.3.7 Other plants
  • 3.4 Minerals and chemistry
    • 3.4.1 Pigments
    • 3.4.2 Dyes
    • 3.4.3 Food coloring
• 4 Symbolism and associations
  • 4.1 In China
  • 4.2 Light and reason
  • 4.3 Gold and blond
  • 4.4 The color of visibility and caution
  • 4.5 The color of optimism and pleasure
  • 4.6 In other cultures
  • 4.7 Music
  • 4.8 Politics
  • 4.9 Historic flags
  • 4.10 Selected national and international flags
  • 4.11 Religion
  • 4.12 Metaphysics
  • 4.13 Sports
  • 4.14 Transportation
  • 4.15 Vexillology
• 5 Idioms and expressions
• 6 See also
• 7 References
• 8 Notes

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