Prismatic color

Formal- Prismatic colors are the colors that can be seen when white light goes through a prism.

Source- http://www.yourdictionary.com/prismatic-colors#21mLtK4ZEfZw1UWv.99

Informal- colors are visible when the lights are reflected.

Muted color

Formal- Muted colors are colors that are less intense.

Source- https://www.google.com/#q=muted+colors+definition

Informal- when two complimentary colors are mixed.

Achromatic gray

Formal- An achromatic gray is a gray color in which the red, green, and blue codes are exactly equal.

Source- https://en.wikipedia.org/wiki/Shades_of_gray

Informal- complimentary colors are exactly gray.

Chromatic gray

Formal- A chromatic gray is a gray color in which the red, green, and blue codes are not exactly equal, but are close to each other, which is what makes it a shade of gray

Source- https://en.wikipedia.org/wiki/Shades_of_gray

Informal- complimentary colors are close to gray but not exactly the same.

Additive color

Formal-Additive color mixing begins with black and ends with white; as more color is added, the result is lighter and tends to white.

Source- http://www.worqx.com/color/color_systems.htm

Informal-when the primary colors are mixed it turns white.

Subtractive color

Formal-Subtractive color mixing means that one begins with white and ends with black; as one adds color, the result gets darker and tends to black.

Source- http://www.worqx.com/color/color_systems.htm

Informal- when the primary colors are mixed it turns black.

Bezold effect

Formal- Bezold Effect, also referred to as the “assimilation effect,” is an optical illusion where a color’s hue or value is affected by the color or colors surrounding it.

Source- http://www.newworldencyclopedia.org/entry/Bezold_Effec

Informal- color is valued in differently with different color.

Color interaction

Formal-Color Interaction. pertains to the idea that color perception is dependent on color relationships. Simultaneous contrast. can be defined as the way colors interact and affect each other.

Source- https://quizlet.com/31644219/color-interaction-flash-cards

Informal- relationship between colors.