Approximate screen color · source authority unverified

Treat this hex as approximate until it is checked against a physical sample.

Francofil

Blue

PETG

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Color values and print settings

Hex: #183681
RGB: 24, 54, 129
HSL: 223°, 69%, 30%
CIELAB: 25.00, 18.47, -45.44
Diameter: 1.75 mm

Printing this material

Keep dry — Absorbs moisture from the air, which prints as stringing, popping and weak layers. Filament that has sat out usually needs drying before use.

True of PETG generally. Follow Francofil’s own guidance for this spool.

Where to buy

Francofil’s own store hasn’t listed this colour since Sep 29, 2026. It may be out of stock until a restock. We check the store several times a day.

Closest alternatives from other spools

Ranked by how close each one looks to #183681, measured perceptually. Useful when this color is out of stock or you print in a different material.

Other colors in PETG

See everything close to #183681 →