Vibrance shares the Schwarzkopf level-reflect dash notation: 9-1 = level 9, ash reflect. Keep the house quirks in mind: -5 is gold and -7 is copper.
- 0-XX shades (like 0-11): concentrates to intensify or correct, never used alone.
- Half levels .5 (like 9.5-1): pastels and very light toning shades.
The difference from Royal is not in the code but in the chemistry: Vibrance only deposits. A Vibrance 7-1 over a level 5 base will not give a medium blonde — it will give a toned level 5. Choose the shade with the existing base in mind.