Source of the information displayed below
Colour terms:
“Hue: synonymous with “color” or the name of a specific color; traditionally refers to one of the 12 colors on the color wheel
Shade: a hue darkened with black
Tone: a hue dulled with gray
Tint: a hue lightened with white
Saturation: refers to the intensity or purity of a color (the closer a hue approaches to gray, the more desaturated it is)
Value: refers to the lightness or darkness of a color.”
Colour harmonies
“Monochromatic: various shades, tones, or tints of one color; for instance, a range of blues varying from light to dark; this type of scheme is more subtle and conservative
Complementary: opposites on the color wheel, such as red/green or blue/orange; complementary colors are high-contrast and high-intensity, but can be difficult to apply in a balanced, harmonious way (especially in their purest form, when they can easily clash in a design)
Tetradic/Double-Complementary: two complementary pairs; this scheme is very eye-catching, but may be even harder to apply than one pair of complementary colors, since more colors are more difficult to balance. If you use this type of scheme, you’ll want to choose one of the four to be the dominant color and adjust the saturation/value/etc. of some or all the colors so they work well in different parts of your design like the text and background.”