Deciem Serum Foundation 2.1Y dupes - verified by color distance
We measured Deciem Serum Foundation 2.1Y (warm undertone, light depth) against every shade we track across 26 brands. The closest dupe is Deciem Coverage Foundation in 2.1Y - near-identical (ΔE 0.0).
| Brand | Product | Shade | Undertone | Depth | Match | Price |
|---|---|---|---|---|---|---|
| Deciem | Coverage Foundation | 2.1Y | Warm | Light | near-identical (ΔE 0.0) | $6.9 |
| Nyx | Gotcha Covered Concealer Pencil | Caramel Beige | Warm | Light | very close (ΔE 2.6) | $7 |
| Nyx | Gotcha Covered Concealer Pencil | Classic Tan | Warm | Light-Medium | very close (ΔE 3.2) | $7 |
| Revlon | New Complexion One-Step Makeup | Honey Beige | Warm | Light | very close (ΔE 4.0) | $18.29 |
| Deciem | Coverage Foundation | 2.1P | Warm | Light | close (ΔE 4.7) | $6.9 |
| E.L.F. | Studio Tinted Moisturizer | Nude | Warm | Light | close (ΔE 4.9) | $4.99 |
| Clinique | Acne Solutions™ Liquid Makeup | Fresh Cream Chamois | Warm | Light | close (ΔE 5.0) | $28 |
| Clinique | Even Better Glow™ Light Reflecting Makeup Broad Spectrum SPF 15 | WN 12 Meringue | Warm | Light | close (ΔE 5.9) | $28 |
How we verify dupes
Shade names lie; color math does not. Each foundation shade is converted to Lab color space and compared by ΔE (perceptual color distance): under 2 is near-identical, 2-4 reads the same on skin in normal light. We also require the undertone and depth to line up, because two shades with the same surface color can wear differently if the undertone underneath differs. Not sure of your own undertone? Run the free undertone test or the full AI makeup analysis - both run in your browser.
FAQ
What is the closest dupe for Deciem Serum Foundation 2.1Y?
Deciem Coverage Foundation in 2.1Y - measured at near-identical (ΔE 0.0), with warm undertone and light depth.
Is there a cheaper dupe for Deciem Serum Foundation 2.1Y?
The closest measured matches are listed above; compare current prices before buying, and confirm your own undertone with the free analyzer.
How are these dupes verified?
Each shade is converted to Lab color space and compared by ΔE (color distance): under 2 is near-identical, under 4 reads the same on skin. We also match undertone and depth, which drives how a shade actually wears.
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