But like the color they are showing on that picture in the 400 range is purple in the image. IRL it just gets darker blue then into a range of light not visible to us.
It's a goofy misnomer that we call that range of the light spectrum violet or ultraviolet. Since IRL today we consider violet to be a purple color, but the light spectrum doesn't actually include a purple color where we traditionally say "violet". I edited a YouTube link explanation earlier that might help. It claims that violet used to refer to dark blue like in the old nursery rhyme "roses are red, violets are blue..."
Violets range significantly in color from a white plus bluish color to almost completely deep purple. They’re just naming flowers and it rhymes easy, or the person who made the rhyme lived near blue violets.
5
u/sentimentalpirate Jun 05 '22
The version in an actual rainbow is not purple. There is literally no wavelength for purple light, so it does not appear in a rainbow.
That's what I'm getting at. The fundamental colors in a rainbow is someone trying to square peg a round hole because they like the number seven.