Check this site out when working with color:

Secondary Colors consist of an equal amount of the primary color they fall in between. Red and blue are mixed
equally to produce violet. Red and yellow are mixed equally to produce orange. Yellow and blue are mixed
equally to product green.

Tertiary colors are created by mixture the primary and secondary colors on either side of them.

Tints are created when you add white to a color. Orange-red is a tint of red.

is the percentage of white or black in a color. The value goes from all white to gradients leading to totally black.

Hue refers to color. You can increase or decrease the brightness of a hue by adding white or black.

Luminosity refers to the amount of light reflected from a hue. Hues with higher white content have higher luminosity.

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