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Blue from biology, built for denim

November 13, 2026
Première Vision Denim

[Sponsored article]

Claessen Blue™ connects a new colour chemistry with the way denim is designed, dyed and made.

Denim’s next blue will be judged on fabric, through finishing and at industrial scale. Claessen Blue™ is Chloris’s bio-based blue dye, produced by microbial fermentation from renewable agricultural feedstocks. Chemically distinct from indigo, it offers its own colour expression and versatile wash-down effects. Its value comes into focus when designers and mills translate that colour into fabric and finished garments.

Chloris has moved from strain development into industrial fermentation. Claessen Blue™ can run on existing denim dyeing equipment with adjusted recipes. Near-neutral dyeing conditions also open possibilities for fibres and blends beyond conventional Environmental claims need evidence and clear boundaries. ISCC PLUS supports feedstock traceability; ZDHC MRSL conformance and GOTS input approval address chemical requirements at the dye level. A TÜV-verified life-cycle assessment identifies advantages in human toxicity and resource use, while pointing to energy efficiency as a priority for further work. Commercial adoption depends on repeatability: brands need the next production run to match the approved sample.

That is why Chloris works with mills, garment makers and laundries on product briefs that define shade, fabric, finish and performance. Shade consistency, wash-down, colour fastness and resistance to yellowing are evaluated for each fabric and finishing route. At Denim Première Vision, visitors can see Claessen Blue™-dyed and washed fabrics and garments developed with industry partners. These products show how a different blue can carry denim’s familiar character while opening new design and sourcing possibilities. The panel “Redefining Blue: Beyond Indigo – Rethinking Color at Its Source” asks what it takes for emerging colour technologies to work for the global denim industry. Chloris brings a perspective grounded in production, performance and commercial adoption.

Meet the Chloris team at the Denim Première Vision show, booth B33.

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Color Reimagined by Biology.

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