Convert L'Oreal Professionnel Dia Light / Dia Richesse to Goldwell Topchic

Q: How many Dia Light / Dia Richesse shades have an exact equivalent in Topchic?

Of the 16 Dia Light / Dia Richesse shades, 13 have an exact equivalent in Topchic, 2 close and 1 approximate. The level (1-10) is universal; what varies is the reflect.

Find the equivalent for each L'Oreal Professionnel Dia Light / Dia Richesse shade in Goldwell Topchic. Complete chart with levels, reflects, and match confidence.

Remember that equivalences are approximate. Each brand has proprietary pigments and bases that produce slightly different results. We always recommend doing a strand test when switching brands.

Dia Light / Dia Richesse	Name	Topchic	Name	Match
Level 5
5	Light Brown	5N	Light Brown	Exact
Level 6
6	Dark Blonde	6N	Dark Blonde	Exact
6.1	Dark Ash Blonde	6A	Dark Ash Blonde	Exact
6.3	Dark Golden Blonde	6G	Dark Golden Blonde	Exact
6.34	Dark Golden Copper Blonde	6G	Dark Golden Blonde	Close
Level 7
7	Medium Blonde	7N	Medium Blonde	Exact
7.1	Medium Ash Blonde	7A	Medium Ash Blonde	Exact
7.3	Medium Golden Blonde	7G	Medium Golden Blonde	Exact
7.43	Medium Copper Golden Blonde	7K	Medium Copper Blonde	Close
Level 8
8	Light Blonde	8N	Light Blonde	Exact
8.1	Light Ash Blonde	8A	Light Ash Blonde	Exact
8.3	Light Golden Blonde	8G	Light Golden Blonde	Exact
Level 9
9	Very Light Blonde	9N	Very Light Blonde	Exact
9.1	Very Light Ash Blonde	9A	Very Light Ash Blonde	Exact
9.3	Very Light Golden Blonde	9N	Very Light Blonde	Approximate
Level 10
10	Lightest Blonde	10N	Lightest Blonde	Exact

Heads up: Dia Light / Dia Richesse is a demi color and Topchic is permanent. Coverage, longevity and the final result will differ: adjust the service, not just the shade.

How to read the match: Exact = same level and same reflect · Close = same level, same reflect family · Approximate = same level in natural, or adjacent level with the same reflect. Hover each badge for that row's reason.

Of the 16 Dia Light / Dia Richesse shades, 13 exact, 2 close and 1 approximate in this chart with Topchic. For example, Dia Light / Dia Richesse's 6 maps to Topchic's 6N. Natural reflects cross over best; golden ones need more adjustment.

Dia Light / Dia Richesse writes the reflect with a dot (7.1 = ash blonde); Topchic uses a letter after the level (7N = medium natural blonde). The level (1-10) stays the same; what changes when converting is how the reflect is written.

View reverse: Goldwell Topchic to L'Oreal Professionnel Dia Light / Dia Richesse

We answer your questions

Questions about Dia Light / Dia Richesse and Topchic

Common questions when converting between these brands

How many Dia Light / Dia Richesse shades have an exact equivalent in Topchic?

Of the 16 Dia Light / Dia Richesse shades, 13 have an exact equivalent in Topchic, 2 close and 1 approximate. The level (1-10) is universal; what varies is the reflect.

Are brand equivalences exact?

No. Equivalences are approximate because each brand uses different pigments, bases, and concentrations. The level (1-10) is universal, but the reflect result may vary. We always recommend doing a strand test when switching brands.

Can I mix hair color from different brands?

It's not recommended. Each brand formulates its products with specific chemistry (pH, alkalizing agent, pigment system). Mixing brands can create unpredictable reactions and unwanted results. Always use color and developer from the same brand.

What if the exact shade doesn't exist in the other brand?

The tool shows you the closest available shade. If you need a very specific result, you can combine two shades from the target brand (for example, mixing a natural with an ash to get a soft ash). Blendsor calculates these mixes automatically.

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Convert L'Oreal Professionnel Dia Light / Dia Richesse to Goldwell Topchic

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Questions about Dia Light / Dia Richesse and Topchic

Charts give you the equivalent.Blendsor gives you the full formula for that hair: ratio, developer and timing.

Charts give you the equivalent.
Blendsor gives you the full formula for that hair: ratio, developer and timing.