Hair Color Tips, Salon Tips

Hair Color Mixing Ratios by Brand: 1:1, 1:1.5 and 1:2 Explained

Goldwell Topchic, Wella Koleston Perfect ME+, Matrix SoColor Pre-Bonded and Pravana ChromaSilk permanent hair color

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Reading time: 8 min

Most permanent hair color lines mix 1 part color to 1 part developer, but not all: Pravana ChromaSilk and Rusk Deepshine call for 1:1.5, Framesi Framcolor 2001 calls for 1:2, and most high-lift series use 1:2. Follow the brand in your bowl, not the one you used on the last client. Below are the hair color mixing ratios for the permanent lines we carry, taken from each maker’s own guide, plus how to measure and what to do with leftovers.

Key takeaways

  • A ratio is parts of color to parts of developer. At 1:1.5, 40 g of color takes 60 g of developer.
  • Most lines in the chart mix 1:1. Pravana ChromaSilk and Rusk Deepshine mix 1:1.5, and Framesi Framcolor 2001 mixes 1:2.
  • High-lift series usually switch to 1:2 with a stronger developer, so check the series, not just the brand.
  • Weigh color and developer, mix right before you apply, and throw away what is left.
  • The FDA says to do a patch test before every color service, wear gloves, and never dye eyebrows or eyelashes.

What does a hair color mixing ratio mean?

The first number is the color, the second is the developer.

  • 1:1 is equal parts. Wella’s Koleston Perfect fact sheet: 60 g of color with 60 ml of Welloxon Perfect.
  • 1:1.5 is one and a half parts developer. Rusk: 1 oz (30 ml) of Deepshine color with 1.5 oz (45 ml) of developer.
  • 1:2 is twice as much developer. Framesi: 30 cc (1 oz) of Framcolor 2001 with 60 cc (2 oz) of developer.

Developer volume (10, 20, 30 or 40) is a separate choice about peroxide strength and lift; see our developer volume guide.

Why the mixing ratio matters

Goldwell explains that Topchic needs 1:1 mixing with its Cream Developer Lotion “to create the ideal color mass, the correct pH value and mild alkalinity” so the color reaches the planned lightness and deposit. Change the ratio and you change that balance.

Lift and developer strength

Each brand ties lift to its own developer, and the numbers differ. CHI’s Ionic sheet says 20 volume lifts up to 1 level and 40 volume up to 3. Rusk says its 20 volume lifts up to two levels and 40 volume up to four. So one line’s lift chart does not carry over to another. To read the numbers on the tube, see hair color levels and tones.

Deposit

Developer also dilutes the dye. Framesi says that on porous, pre-lightened hair you may drop from 1:2 to 1:1 or 1:1.5 “for maximum pigment deposition”. Rusk lists 1:2 for “demi like results”, and Danger Jones says Epilogue mixed 1:2 with 5 volume works like a demi while keeping an alkaline pH. Extra developer means a sheerer result than the chart promises.

Gray coverage

Several brands name one ratio and developer for gray. Matrix mixes SoColor Extra Coverage shades 1:1 with 20 volume, CHI says Ionic Coverage Plus is always mixed with 20 volume, and Pravana uses 1.5 parts 20 volume for 45 minutes. For stubborn gray, see how to cover resistant gray hair.

Hair color mixing ratio chart by brand

We read every row on the brand’s own page, instruction sheet or education guide on October 6, 2026 (see Sources). Directions change, and Wella’s US store notes that when the website and the package differ, follow the label on the product. Always check the sheet in the box.

Color line Ratio (color : developer) Developer the brand names Processing time (per brand) High-lift and special series Source
Goldwell Topchic (2–10 series) 1:1 Topchic Cream Developer Lotion 3%, 6%, 9%, 12% (10–40 vol); 6% (20 vol) for gray 30 min; 20 min with heat The Special Lift (11- and 12-series): 1:2 with 9% or 12%, 45 min (30 min with heat) Goldwell guide
Wella Koleston Perfect ME+ 1:1 Welloxon Perfect 6% (gray, 1 level), 9% (2 levels), 12% (3 levels); fact sheet also lists 4% 30–40 min; 15–20 min with heat Special Blondes: 1:2 with 9% or 12%, 50–60 min (25–35 min with heat) Wella fact sheet
Wella Illumina Color 1:1 Welloxon Perfect 1.9%, 3%, 6%, 9% or 12% 30–40 min; 15–25 min with a Climazon None listed Wella US
Matrix SoColor Pre-Bonded 1:1 Matrix Cream Developer 10, 20, 30 or 40 vol; Extra Coverage shades with 20 vol 30–45 min Ultra Blonde: 1:2 with 30 or 40 vol, 50 min Matrix chart
Schwarzkopf IGORA ROYAL 1:1 IGORA ROYAL Oil Developer 3%, 6%, 9% or 12% 30–45 min Special Blonde (12- series): 1:2 with 9% or 12%, 30–45 min. Ultra Blonde (10- series) stays 1:1 IGORA wall chart
Joico LumiShine Repair+ Permanent Crème 1:1 LumiShine Developer 10, 20, 30 or 40 vol 35 min; up to 45 min for gray; no heat None listed Joico fact sheet
Paul Mitchell the color 1:1 Paul Mitchell Cream or Clear Developer 35 min Highlifts: 1:2 with 40 vol for maximum lift, or 1:1 with 40 vol for a more toned result; 45 min PM education
Paul Mitchell the color XG 1:1 Paul Mitchell Cream Developer 10–40 vol; Ultra Toners with 10 vol Depends on the developer volume; see the brand’s chart Highlifts: 1:2 with 40 vol; 1:2.5 for resistant hair PM education
Pravana ChromaSilk Creme Hair Color 1:1.5 ChromaSilk Creme Developer 10, 20, 30 or 40 vol 30 min with 10 or 20 vol; 45 min, no heat, with 30 or 40 vol or with 20 vol for gray Hi Lifts: 1:1.5 with 30 or 40 vol, 45 min Pravana FAQ
Kenra Color Permanent 1:1 Kenra Color Permanent Coloring Creme Developer 10–40 vol 30 min; up to 40 min for gray None listed Kenra
CHI Ionic Permanent Shine 1:1 CHI Developer 10, 20, 30 or 40 vol; Coverage Plus series always 20 vol 30 min at room temperature; Coverage Plus 35 min None listed CHI sheet
Framesi Framcolor 2001 1:2 Framesi Professional Activator 10–40 vol (Ossidorr needs an extra 10 cc) 35–45 min; 50 min with 40 vol; no heat recommended On pre-lightened hair, 1:1 or 1:1.5 is allowed for more deposit Framesi manual
Moroccanoil Color Rhapsody 1:1 Moroccanoil Oxidative Cream Developer 5, 10, 20, 30 or 40 vol 30–45 min; 15–25 min with heat Ultimates: also 1:1, 35 min, up to 45 min for resistant hair Moroccanoil
Danger Jones Epilogue 1:1 Danger Jones Deluxe Cream Developer 5–40 vol 35 min at room temperature (FAQ: 35–45 min) High Lift Colors: 1:2 with 20–40 vol, 45–55 min Danger Jones
Rusk Deepshine Permanent (Pure Pigments) 1:1.5 (Rusk also allows 1:2 for demi-like results) Deepshine Shine Enhancing Cream Developer 10–40 vol; 10 or 20 vol for gray Up to 45 min, no heat Ultimate Blonde High-Lift: 1:2 with 30 or 40 vol, up to 45 min Rusk
#mydentity Permanent 1:1 #mydentity Permanent Crème Developer 10–40V 30 min; up to 40 min for gray None listed #mydentity

“None listed” means the page we used gives no separate high-lift ratio. Ten-minute express lines have their own ratios; see our 10-minute hair color comparison.

Every brand names its own developer; Kenra, for example, says its permanent developers were “specially formulated” for Kenra Color Permanent. High-lift shades almost always move to 1:2 with 30 or 40 volume. And some series do not mix with the rest of the line: Matrix says to mix Ultra Blonde shades only with each other, and Pravana says its Hi Lifts are not compatible with ChromaSilk Creme Hair Color.

Weighing vs eyeballing: how to measure color and developer

#mydentity’s education manual says to weigh the color formulation “to achieve the most accurate mixing ratio”. Goldwell says to use proper measuring and mixing tools and to start with the developer lotion. Framesi marks each Framcolor 2001 tube in 10 cc steps and measures developer in a beaker.

  1. Use a non-metallic bowl. Kenra, Moroccanoil and Danger Jones say non-metallic, and Wella’s developer warning rules out a metal bowl or stirrer.
  2. Zero the scale with the bowl on it, then weigh the color.
  3. Add developer to the ratio: 30 g of color takes 30 g at 1:1, 45 g at 1:1.5 or 60 g at 1:2.
  4. Mix until smooth. CHI says to use its color whisk for proper mixing. For a bottle, Joico says developer first, then color, and shake well.
  5. Write the formula down with grams, developer volume and time.

What happens when the ratio is off

  • Too much developer: the dye is diluted. Framesi and Rusk add developer only when they want less deposit.
  • Too little product or time: Goldwell lists processing that was too short, or not enough product, among the causes of poor gray coverage, and the wrong developer lotion among the causes of color that fades too fast.
  • Mixed-up series: IGORA’s wall chart says to ensure the correct mixing ratio and observe accurate development time. A high-lift shade mixed 1:1 is not the formula the brand tested.

Timing matters too. Wella’s Welloxon Perfect warning says not to exceed the stated development time, and the FDA says not to leave hair dye on longer than the directions say and to use a clock or timer.

Mix right before use, then throw leftovers away

Moroccanoil says to use Color Rhapsody “immediately after mixing”. Wella’s Welloxon Perfect directions say to use the mixture immediately and discard any unused mixture, and not to leave it in a closed applicator bottle, which may expand or burst. Mix only what the step needs, never cap mixed color for later, and recap developer right away; Wella says to keep developer away from heat and light.

Safety on every color service

The FDA’s hair dye checklist says to follow all label directions, do a patch test every time before dyeing, wear gloves, and never dye eyebrows or eyelashes, because this can hurt the eyes and may even cause blindness. Wella and CHI direct an allergy test 48 hours before each color service, and CHI notes that allergies can appear even in clients who have colored for years. Our 48-hour patch test guide walks through the steps.

At OBB

Call or text (949) 591-5304 with your list and we will confirm stock and pricing, then pick up at our Westminster store.

Related reading: developer volume guide, hair color levels and tones, covering resistant gray hair and 10-minute hair color.

FAQ

Is permanent hair color always mixed 1:1?

No. Most lines in our chart are 1:1, but Pravana ChromaSilk and Rusk Deepshine use 1:1.5, Framesi Framcolor 2001 uses 1:2, and many high-lift series use 1:2.

Can I use another brand’s developer?

Each brand’s directions name its own developer, and the ratios and times above were written for that pairing. Stay with the developer the brand names.

Should I weigh hair color or go by the tube marks?

Weigh it when you can. #mydentity says to weigh the formulation for the most accurate ratio, and Goldwell says to use proper measuring tools.

Can I save leftover mixed color?

No. Wella says to use the mixture immediately and discard any unused mixture, and warns that a closed bottle of mixture may expand or burst.

Does more developer mean more lift?

Not on its own. Brands link lift to developer volume and high-lift shades; Framesi and Rusk show that extra developer on regular shades mainly gives a sheerer deposit.

Sources

This article is general information for licensed hair professionals, based on brand directions read on October 6, 2026. Directions change, and the instruction sheet in the box comes first. If a client shows signs of a reaction, stop the service and have them see a doctor.