violet
Let an agent identify and specify violet shades, explain spectral violet versus purple, provide colour codes and accessibility guidance, and describe cultural and symbolic uses.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent identify and specify violet shades, explain spectral violet versus purple, provide colour codes and accessibility guidance, and describe cultural and symbolic uses.
A colour between blue and purple at the short-wavelength end of the visible spectrum, spectrally around 380 to 450 nanometres, and also a range of purplish hues in pigments and design such as cobalt violet, red-violet and dark violet; the name comes from the flower, and violet is used in art, design, symbolism and colour standards.
What it is for: Colour identification, design and culture.
It can be specify violet in colour systems; distinguish violet from purple; check contrast and accessibility; describe symbolism and uses.
Distinguishing features
Short-wavelength spectral colour
Bluish purple
Many named shades
Named after the flower
What it looks like
A bluish purple hue.
Physical character
spectral wavelength: about 380-450 nm
How it is recognised
Between blue and purple
Spectral colour at short wavelengths
Purple is a mix of red and blue, not spectral
Related models
is a kind of - category
is adjacent to - spectrum neighbour
is related to - visible light
is related to - purple light in twilight
In practice
Families and kinds
spectral violet
cobalt violet and other pigments
red-violet and dark violet shades
web and design violets
violet in nature such as flowers and minerals
Standards and regulation
Colour standards such as sRGB and Pantone
WCAG contrast guidelines
Failure modes and hazards
Confusing violet and purple
Poor contrast in design
Display differences
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.violet
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Specify Colour codes.
Systems differ.
Codes
Hex and other values.
Codes
Codes.
- What are the hex, RGB and other values for this violet shade? provenance
- Which standard defines it? provenance
Shades
Named shades.
Shades
Named shades.
- How do red-violet, dark violet and cobalt violet differ? definition
- Which pigments produce them? provenance
Science Physics and perception.
Spectral versus mixed.
Spectral
Spectral violet.
Spectral
Spectral violet.
- Why is violet a spectral colour while purple is not? definition
- How do displays reproduce violet? definition
Perception
Seeing violet.
Perception
Perception.
- How do people with colour vision deficiency perceive violet? provenance
- Why does violet appear reddish to some observers? provenance
Design Using violet.
Contrast matters.
Contrast
Accessibility.
Contrast
Accessibility.
- Does this violet meet WCAG contrast requirements against the background? measurement
- Which pairings work? action
Palette
Palettes.
Palette
Palettes.
- Which palettes suit this violet for the intended mood? action
- How does it print versus display? provenance
Culture Meaning.
Attributed meanings.
Symbolism
Symbolic uses.
Symbolism
Symbolism.
- What does violet symbolise in this culture or tradition, according to sources? provenance
- Which movements have used it? provenance
Nature
Violet in nature.
Nature
Nature.
- Which flowers, minerals and animals are violet, and why? provenance
- Which entry fits the violet flower? action
What the second pass must settle
- Should named shades be separate entries?
- How should colour standards be linked?
- How should cultural meanings be attributed?