Approximate screen color · source authority unverified
Treat this hex as approximate until it is checked against a physical sample.
3D-Fuel
Cobalt Blue
PLA+
Color values and print settings
- Hex
- #12218F
- RGB
- 18, 33, 143
- HSL
- 233°, 78%, 32%
- CIELAB
- 20.82, 37.56, -61.06
- Diameter
- 1.75 mm
- Nozzle
- 195–215 °C
- Bed
- 55–65 °C
Where to buy
This purchase link is an affiliate link, so Filament Select may earn a commission at no extra cost to you. As an Amazon Associate, Filament Select earns from qualifying purchases. Ranking is determined by color difference alone and is never influenced by commission. Full disclosure.
No purchase source indexed yet. That is a gap in our retailer coverage rather than a judgement about the filament — it may well be in stock somewhere we have not indexed.
Amazon
Opens a related Amazon listing for Midnight Black. Cobalt Blue has not been matched; check the available options there.
Closest alternatives from other spools
Ranked by how close each one looks to #12218F, measured perceptually. Useful when this color is out of stock or you print in a different material.
Printed Solid
Jessie Blue Moon
PLA
Excellent match97% matchΔE 1.7FormFutura
EasyFil ePLA Ultramarine Blue
PLA
Excellent match97% matchΔE 1.7Flashforge
PLA - Blue
PLA
Very close96% matchΔE 2.1Flashforge
PLA Pro - Blue
PLA
Very close96% matchΔE 2.1Prusament
Shimmering Violet
PETG
Very close95% matchΔE 2.2Sunlu
Klein Blue
ABS
Very close94% matchΔE 2.5