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Convert Küül Color System to Wella Professionals Illumina Color

Find the equivalent for each Küül Color System shade in Wella Professionals Illumina Color. 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.

Color System Name Illumina Color Name Match
Level 3
3 Dark Brown 4/ Medium Brown Approximate
Level 4
4 Brown 4/ Medium Brown Exact
4.65 Burgundy 4/ Medium Brown Approximate
Level 5
5 Light Brown 5/ Light Brown Exact
5.1 Light Ash Brown 5/02 Light Brown Natural Matte Exact
5.5 Light Mahogany Brown 5/43 Light Brown Red Gold Approximate
5.31 Chocolate 5/7 Light Brown Exact
5.45 Mocha 5/7 Light Brown Exact
Level 6
6 Dark Blonde 6/ Dark Blonde Exact
6.1 Dark Ash Blonde 6/16 Dark Ash Violet Blonde Exact
6.11 Dark Intense Ash Blonde 6/16 Dark Ash Violet Blonde Exact
6.12 Dark Pearl Ash Blonde 6/16 Dark Ash Violet Blonde Approximate
6.22 Dark Intense Pearl Blonde 6/16 Dark Ash Violet Blonde Approximate
6.23 Dark Pearl Gold Blonde 6/16 Dark Ash Violet Blonde Approximate
6.77 Dark Intense Violet Blonde 6/16 Dark Ash Violet Blonde Approximate
6.34 Dark Golden Copper Blonde 6/ Dark Blonde Approximate
6.66 Dark Intense Red Blonde 6/ Dark Blonde Approximate
Level 7
7 Blonde 7/ Medium Blonde Exact
7.1 Ash Blonde 7/81 Medium Blonde Pearl Ash Exact
7.11 Intense Ash Blonde 7/81 Medium Blonde Pearl Ash Exact
7.12 Pearl Ash Blonde 7/81 Medium Blonde Pearl Ash Approximate
7.22 Intense Pearl Blonde 7/81 Medium Blonde Pearl Ash Approximate
7.76 Reddish Violet Blonde 7/81 Medium Blonde Pearl Ash Approximate
7.3 Golden Blonde 7/31 Medium Gold Matte Blonde Exact
7.44 Intense Copper Blonde 7/31 Medium Gold Matte Blonde Approximate
7.64 Red Copper Blonde 7/43 Medium Red Gold Blonde Exact
7.5 Mahogany Blonde 7/43 Medium Red Gold Blonde Approximate
7.62 Pearl Red Blonde 7/43 Medium Red Gold Blonde Exact
7.66 Intense Red Blonde 7/43 Medium Red Gold Blonde Exact
7.31 Latte Macchiato 7/7 Medium Brown Blonde Exact
7.35 Cappuccino 7/7 Medium Brown Blonde Exact
Level 8
8 Light Blonde 8/ Light Blonde Exact
8.1 Light Ash Blonde 8/1 Light Ash Blonde Exact
8.11 Light Intense Ash Blonde 8/1 Light Ash Blonde Exact
8.22 Light Intense Pearl Blonde 8/69 Light Violet Cendre Blonde Exact
8.3 Light Golden Blonde 8/36 Light Gold Violet Blonde Exact
8.62 Light Pearl Red Blonde 8/ Light Blonde Approximate
8.66 Light Intense Red Blonde 8/ Light Blonde Approximate
Level 9
9 Very Light Blonde 9/ Very Light Blonde Exact
9.1 Very Light Ash Blonde 9/19 Very Light Ash Cendre Blonde Exact
9.11 Very Light Intense Ash Blonde 9/19 Very Light Ash Cendre Blonde Exact
9.9 Platinum Blonde 9/19 Very Light Ash Cendre Blonde Exact
9.12 Very Light Pearl Ash Blonde 9/60 Very Light Violet Natural Blonde Exact
9.22 Very Light Intense Pearl Blonde 9/60 Very Light Violet Natural Blonde Exact
9.33 Very Light Intense Golden Blonde 9/03 Very Light Natural Gold Blonde Exact
9.66 Very Light Intense Red Blonde 9/ Very Light Blonde Approximate
Level 10
10 Lightest Blonde 10/ Lightest Blonde Exact
10.1 Lightest Ash Blonde 10/1 Lightest Ash Blonde Exact
10.11 Lightest Intense Ash Blonde 10/1 Lightest Ash Blonde Exact
10.22 Lightest Intense Pearl Blonde 10/69 Lightest Violet Cendre Blonde Exact
10.21 Lightest Pearl Ash Blonde 10/69 Lightest Violet Cendre Blonde Exact
10.31 Lightest Golden Ash Blonde 10/ Lightest Blonde Approximate

No direct equivalent in Illumina Color (4)

These Color System shades have no comparable level-and-reflect shade in Illumina Color. Switching ranges here means adjusting the formula, not swapping one code for another.

  • 1 Black
  • 1A Blue Black
  • 1V Violet Black
  • 2 Extra Dark Brown

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 56 Color System shades, 34 exact and 18 approximate in this chart with Illumina Color. For example, Color System's 6 maps to Illumina Color's 6/. Ash reflects cross over best; mahogany ones need more adjustment. 4 shades have no direct equivalent in Illumina Color; those cases need a formula adjustment, not a code swap.

Color System writes the reflect with a dot (7.44 = intense copper blonde; .2 = pearl/iridescent, .7 = violet); Illumina Color uses a slash (7/81 = pearl blonde). The level (1-10) stays the same; what changes when converting is how the reflect is written.

We answer your questions

Questions about Color System and Illumina Color

Common questions when converting between these brands

Of the 56 Color System shades, 34 have an exact equivalent in Illumina Color, 18 approximate and 4 with no direct equivalent. The level (1-10) is universal; what varies is the reflect.

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.

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.

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.

Have more questions?

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