Tonal progression,

• The purpose of this page on Tonal Progression is to demonstrate some ideas about color mixing.(http://anthonyryder.fineartworld.com/)
• is a color proceeding from dark to light

shade,

• the comparative darkness caused by the interception or screening ofrays of light from an object, place, or area.(dictionary.com)
• a color, especially with regard to how light or dark

tint,

• a color diluted with white; a color of less than maximum purity, chromo, or saturation.(dictionary.com)
• a color with more white to less

tone

• defines the lightness or darkness of a color. The tonal values of an artwork can be adjusted to alter its expressive character.(artyfactory.com)
• to show a color is darkness or lightness

venn diagram

• a diagram that uses circles to represent sets and their relationships.
• make by 2 or more diagram to show the relationships