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Equivalences across 5 brands

Level 10 Ash (/1)

Lightest Blonde Ash — code comparison across 5 professional brands.

Brand / Line
Code
Name
Type
Goldwell Colorance
10A
Pastel Ash Blonde
Demi-permanent
Goldwell Elumen
SB@10
Silver Beige Lightest
Demi-permanent
L'Oreal Professionnel INOA
10.1
Lightest Ash Blonde
Permanent
Wella Professionals Illumina Color
10/1
Lightest Ash Blonde
Permanent
Wella Professionals Color Fresh
10/81
Lightest Pearl Ash Blonde
Demi-permanent

All codes represent the same level (10) and reflect (ash). Chemical formulation differs between brands — results may vary slightly.

Other reflects at level 10

Level 10 Natural 19 brands

Ash reflect at other levels

Level 4 Medium Brown 4 brands Level 5 Light Brown 17 brands Level 6 Dark Blonde 21 brands Level 7 Medium Blonde 21 brands Level 8 Light Blonde 23 brands Level 9 Very Light Blonde 24 brands
Professional colorimetry

Level 10 Ash: what it means

Level 10 corresponds to a lightest blonde on the universal colorimetry scale (1 = black, 10 = lightest blonde). It measures the lightness or darkness of hair, independent of the reflect.

The ash (.1) reflect adds a cool, gray-blue undertone that neutralizes warmth. It is the most requested reflect for counteracting orange or yellow tones. Ideal for those who prefer a cool, sophisticated result without visible warmth.

Each brand codes level and reflect differently. The table above shows how the major professional brands name this same shade: level 10, ash reflect.

Convert between any pair of brands
We answer your questions

Questions about level 10 ash

Brand equivalences

Each brand uses its own naming system. For example, a level 10 ash is 10A in Colorance, SB@10 in Elumen, 10.1 in INOA, 10/1 in Illumina Color, 10/81 in Color Fresh. Although codes differ, they all represent the same level and reflect.

Level and reflect equivalences are a useful reference, but not identical. Each brand has its own chemical formulation, pigments and technology. Two "equivalent" codes will produce similar but not identical results. Factors like natural base, porosity and color history affect the final outcome.

Generally yes. If you maintain the same level and reflect, the result will be very similar. However, a strand test is recommended when switching brands for the first time, as formulation differences can produce slightly different nuances.

Have more questions?

Email us at hello@blendsor.com

These tables show the basic equivalent.
Blendsor converts with 70+ variables.

Porosity, history, natural base, gray percentage and hair type. A real conversion, not just a number.

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