Hair Coloring and Color Theory Flashcards
7 cards from real Cosmetology practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Hair Coloring and Color Theory flashcards as text
Color correction is most commonly required when:
Answer: Previously applied hair color produced undesirable results that need to be fixed
Color correction involves correcting hair that has been improperly colored — such as uneven results, unwanted tones, or drastic color changes — to achieve the desired outcome.
To neutralize unwanted brassy orange tones in lightened hair, a colorist should use a toner containing:
Answer: Blue or violet tones
Blue and violet tones are complementary to orange and yellow on the color wheel, so they neutralize brassiness in lightened hair.
When lightening hair that was previously colored with permanent color, what step is typically required before recoloring?
Answer: Color removal or stripping
Artificial pigment from permanent color must first be removed via a color remover or stripper before a new, lighter shade can be applied evenly.
A 'color filler' is most often used on hair that has been:
Answer: Over-processed and is lacking natural underlying pigment
Color filler replenishes missing contributing pigment in over-processed or previously lightened hair so that the new color result is even and true-to-tone.
What is the recommended sequence when transitioning a client from very dark hair to a light blonde shade?
Answer: Pre-lighten the hair first, then tone it to the desired blonde shade
Dark hair must be pre-lightened (bleached) to remove the natural and artificial pigment before a toner is applied to achieve an even, desired blonde shade.
What is the primary purpose of using a 40-volume developer with hair color?
Answer: To achieve the greatest degree of lift (lightening) along with color deposit
40-volume developer has the highest hydrogen peroxide concentration used in standard coloring, providing maximum lifting action to significantly lighten the natural hair.
What is the standard mixing ratio for most professional permanent hair color formulas?
Answer: 1 part color to 1 part developer (1:1)
The standard mixing ratio for most permanent hair colors is 1:1 (equal parts color and developer), though some formulas vary — always follow the manufacturer's instructions.