Color, Light, and Shadow

                  

 This week we learned all about color. We also had a guest speaker that talked about paint and how color is affected.


HUE is the attribute of a color by virtue of which it is discernible as red, green, etc., and which is dependent on its dominant wavelength, and independent of intensity or lightness.


VALUE A gradation or variety of a color; int and shade: The property of light by which the color of an object is classified as red, blue, green, or yellow in reference to the spectrum.


SATURATION or Chroma: highly saturated colors are bold, bright, clear, and pure, while lass saturation makes a color soft, muted, toned-down or dusty.


METAMERISM is the phenomenon that occurs when color changes under different light sources.


LIGHT REFLECTIVE VALUE (LRV) measures the amount of light a paint color reflects.

Scale: 0 (absolute black, absorbing all light) to 100 (pure white, reflecting all light.)


REFRACTION Light is retracted differently depending on the surface texture of an object, causing different color impressions.


Hide - Ability of a paint to obscure the surface upon which it is applied

  • Created by the light-absorbing or light-scattering properties of pigments
  • "Dirtier" colors tend to offer better hide in fewer coats

Durability

  • How well the the paint film resists physical degradation from use and environmental conditions - e.g., abrasion, chemicals, scrubbing washing, staining, moisture, UV exposure

Fade Resistance 

  • Lightfastness is the fade resistance of paint when exposed to UV rays 
  • Some pigments are inherently better at retaining their color

Gloss - Sheen

  • Gloss and sheen are two aspects of the same thing:
  •   The amount of light reflected off a painted surface independent of its color

We learned about how pigment affects paint performance through hide, durability, fade resistance, and gloss-sheen. There are also different qualities that paint has that can help in certain situations. For example, to improve air quality, odor eliminating, and moisture resistant.

Comments

  1. Professor VanderNoordaaFebruary 11, 2024 at 7:27 AM

    Rebeca,
    Thank you for a great Blog entry. I can see you learned alot through out guest speaker. You do need to include you sketch for the week. Total Points 45/50

    ReplyDelete

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