Convert Goldwell Topchic to L'Oreal Professionnel Dia Light / Dia Richesse
Find the equivalent for each Goldwell Topchic shade in L'Oreal Professionnel Dia Light / Dia Richesse. 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.
| Topchic | Name | Dia Light / Dia Richesse | Name | Match |
|---|---|---|---|---|
| Level 4 | ||||
| 4N | Medium Brown | 5 | Light Brown | Approximate |
| Level 5 | ||||
| 5N | Light Brown | 5 | Light Brown | Exact |
| 5G | Light Golden Brown | 5 | Light Brown | Approximate |
| 5K | Light Copper Brown | 5 | Light Brown | Approximate |
| 5R | Light Red Brown | 5 | Light Brown | Approximate |
| Level 6 | ||||
| 6N | Dark Blonde | 6 | Dark Blonde | Exact |
| 6A | Dark Ash Blonde | 6.1 | Dark Ash Blonde | Exact |
| 6G | Dark Golden Blonde | 6.3 | Dark Golden Blonde | Exact |
| 6K | Dark Copper Blonde | 6.3 | Dark Golden Blonde | Approximate |
| 6R | Dark Red Blonde | 6 | Dark Blonde | Approximate |
| Level 7 | ||||
| 7N | Medium Blonde | 7 | Medium Blonde | Exact |
| 7A | Medium Ash Blonde | 7.1 | Medium Ash Blonde | Exact |
| 7G | Medium Golden Blonde | 7.3 | Medium Golden Blonde | Exact |
| 7K | Medium Copper Blonde | 7.43 | Medium Copper Golden Blonde | Close |
| Level 8 | ||||
| 8N | Light Blonde | 8 | Light Blonde | Exact |
| 8A | Light Ash Blonde | 8.1 | Light Ash Blonde | Exact |
| 8G | Light Golden Blonde | 8.3 | Light Golden Blonde | Exact |
| Level 9 | ||||
| 9N | Very Light Blonde | 9 | Very Light Blonde | Exact |
| 9A | Very Light Ash Blonde | 9.1 | Very Light Ash Blonde | Exact |
| Level 10 | ||||
| 10N | Lightest Blonde | 10 | Lightest Blonde | Exact |
No direct equivalent in Dia Light / Dia Richesse (2)
These Topchic shades have no comparable level-and-reflect shade in Dia Light / Dia Richesse. Switching ranges here means adjusting the formula, not swapping one code for another.
- 2N Black
- 3N Dark Brown
Heads up: Topchic is a permanent color and Dia Light / Dia Richesse is demi. 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 22 Topchic shades, 13 exact, 1 close and 6 approximate in this chart with Dia Light / Dia Richesse. For example, Topchic's 6N maps to Dia Light / Dia Richesse's 6. Ash reflects cross over best; red ones need more adjustment. 2 shades have no direct equivalent in Dia Light / Dia Richesse; those cases need a formula adjustment, not a code swap.
Topchic writes the reflect with a letter after the level (7N = medium natural blonde); Dia Light / Dia Richesse uses a dot (7.1 = ash blonde). The level (1-10) stays the same; what changes when converting is how the reflect is written.
Questions about Topchic and Dia Light / Dia Richesse
Common questions when converting between these brands
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