The phrase "attaching blue" is grammatically correct and can be used in written English.
It can be used in contexts where you are referring to the act of connecting or affixing something that is blue, such as a color or an object.
Example: "I am attaching blue ribbons to the gifts for the party."
Alternatives: "affixing blue" or "connecting blue".
In Experiment 4, half of the circles had an attached blue circle and the other half had an attached black square to simulate two groups of agents holding different objects that could be exchanged.
Despite the warning of a sellout, Honduran fans attached blue-and-white banners to their cars and beeped their horns all the way from New England, from the Carolinas, from New York.
Since 1867 London has paid tribute to distinguished citizens and visitors by attaching circular blue plaques to their places of residence.
Arsenal are "keeping tabs on" Mikel Arteta, the technical term for shooting him with a poison dart from a jeep and then attaching a blue ringpull to his ankle.
Here, slide the white corner into the blue pocket to attach the blue piece.
Attach blue maribou feathers to back of purple foam eyelashes.
The creatures are around six centimetres wide and clear, but they are attached to blue floats that look like shells, which sit flat and allow the sailor-jellies to travel across the water.
Cultural observers here lamented that the exploitation of political authority reached an apogee when it came to driving, including the right for ministers to attach flashing blue lights to their chauffeur-driven luxury sedans so they can speed through Prague traffic with the urgency of ambulances or police cars.
a BP is stretched in the y-direction, i.e. atoms are moved in the direction of the attached arrows (blue online).
Remoras are commonly found attached to blue marlin, often inside the opercula.
