Color Theory & Application Flashcards

Which color is directly opposite red on the traditional color wheel?

Answer: Green

Green is the complementary (directly opposite) color to red on the standard color wheel.

A client has unwanted brassy orange tones after lightening. Which toner level best neutralizes orange?

Answer: Blue-based toner

Blue is opposite orange on the color wheel, so a blue-based toner neutralizes brassy orange tones.

In hair color, what does 'level' specifically refer to?

Answer: The degree of lightness or darkness

Level refers to the degree of lightness or darkness in hair color, measured on a scale of 1 (black) to 10+ (lightest blonde).

What is the term for colors created by mixing a primary and its adjacent secondary color?

Answer: Tertiary colors

Tertiary colors are produced by mixing a primary color with an adjacent secondary color, such as red-orange or blue-green.

A double-process color service requires lightening hair first, then applying toner. What is the primary purpose of the toner step?

Answer: To neutralize unwanted undertones and refine the final shade

Toner is applied after lightening to neutralize unwanted warm or cool undertones and achieve the desired final shade.

Which developer volume is most commonly used for a single-process permanent color application to achieve 1–2 levels of lift?

Answer: 20 volume

20 volume developer is the standard for single-process permanent color, providing 1–2 levels of lift and thorough gray coverage.

When formulating a color for a client with 50% gray hair, which technique ensures better gray blending without full coverage?

Answer: Glossing with a semi-permanent in a darker shade

A semi-permanent gloss deposits sheer color over gray strands, blending them into the overall color without full opaque coverage.