Violet in a sentence as a noun

If that line is not easily defined, does that mean there is no difference between violet and red?

That may imply that these bulbs emit little or no violet in their "white" light, since violet has a shorter wavelength than blue.

Violet in a sentence as an adjective

"The new processed mosaic [is] composed of 60 images taken in the violet, visible and near infrared part of the spectrum".

Violet definitions

noun

any of numerous low-growing violas with small flowers

noun

a variable color that lies beyond blue in the spectrum

adjective

of a color intermediate between red and blue

See also: purple purplish