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Yes, as all pigmented shades do, and the difference comes from pigment cost plus the line flush required when changing color. Blue sits in the middle of our color range on price, above black on pigment cost per unit of coverage and below custom matched shades.

No, they use different pigment systems entirely. Navy reads as a dark blue under daylight and shows its blue cast clearly against a true black carton placed beside it. Buyers who want near-black performance with a hint of color choose navy deliberately rather than as a compromise.

We produce a close match and supply a formed physical sample for approval. Exact matching to a printed Pantone reference is not physically achievable in pigmented fiber, since pulp scatters light differently from coated paper. Brands with a strict standard approve a designated pulp equivalent rather than insisting on the ink reference.

Visible lightening after sustained direct sun across weeks, with pale sky showing it first and navy showing it last. Cartons used and sold within days never see enough exposure to matter. The problem is stock sitting in sun between market days, which is solved by covering the pile rather than by changing shade.

Pale sky, for a tonal match, or move away from blue entirely for contrast. Avoid mid blue and navy, which are strong enough to flatten a pale blue shell so the eggs stop registering as the distinctive thing they are. Order a sample and seat your actual eggs in it before committing.