indigo
Let an agent explain indigo, relay the colour, the natural and synthetic dye, its use in denim and its place in the spectrum from colour science, textile and history sources with debates attributed, describe the named shades, and distinguish indigo from blue generally, violet, woad and the plant genus Indigofera.
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 explain indigo, relay the colour, the natural and synthetic dye, its use in denim and its place in the spectrum from colour science, textile and history sources with debates attributed, describe the named shades, and distinguish indigo from blue generally, violet, woad and the plant genus Indigofera.
A deep blue-violet colour and the natural dye that produces it, historically extracted from plants of the genus Indigofera and from woad, and now made mainly as synthetic indigo, most famously used to dye denim blue; the registry aliases name shades such as Persian, dark and intense indigo. Indigo is also named as one of the seven colours Newton listed in the rainbow, a choice later debated, and it has cultural significance in many textile traditions. Natural indigo dyeing and synthetic production have distinct environmental and labour considerations, discussed with attribution.
What it is for: A blue-violet colour and textile dye.
It can be explain the colour and dye; relay natural and synthetic production; relay use in denim and the spectrum; distinguish related colours and sources.
Distinguishing features
Blue-violet hue
Natural and synthetic dye
Denim colour
Rainbow colour
What it looks like
A deep blue with a violet tint, as on dyed denim.
Physical character
main plant source: Indigofera note
synthetic indigo: from 1897 note - BASF, as reported
registry parent: blue note
How it is recognised
Deep blue-violet colour and dye
Persian Indigo, dark indigo, intense blue
Blue is the broader colour; violet is redder; woad is another indigo source; Indigofera is the plant genus
Related models
is a kind of - in registry terms
is derived from -
is used for -
is contrasted with -
In practice
Families and kinds
natural plant indigo
woad indigo
synthetic indigo
indigo shades
Standards and regulation
Textile dye and chemical safety rules
Environmental rules for dyeing effluent
Failure modes and hazards
Dyeing effluent pollution
Confusing indigo, blue and violet
Labour issues in some dye production
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.indigo
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What indigo is.
Definition.
Definition
Definition.
Definition
Definition.
- What is indigo, and how does it differ from blue generally, violet, woad and the plant genus Indigofera? definition
- Is the question about the colour, the dye or the plant? boundary
Shades
Named shades.
Shades
Shades.
- What are Persian, dark and intense indigo? definition
- Which entry fits the specific shade? action
Dye Dye.
Sources.
Natural
Natural indigo.
Natural
Natural.
- How is natural indigo extracted from plants and woad? provenance
- Which references are standard? provenance
Synthetic
Synthetic indigo.
Synthetic
Synthetic.
- How did synthetic indigo replace most natural dye? provenance
- Which sources are cited? provenance
Use Uses.
Sources.
Denim
Denim.
Denim
Denim.
- Why is indigo the classic denim dye? provenance
- Which entry fits denim? action
Culture
Textile traditions.
Culture
Culture.
- How is indigo used in textile traditions worldwide? provenance
- Is the information accurate? boundary
Context Colour and impact.
Attribution.
Rainbow
Rainbow colour.
Rainbow
Rainbow.
- Why did Newton list indigo in the rainbow, and why is it debated, with views attributed? provenance
- Is the presentation neutral and attributed? boundary
Environment
Environmental impact.
Environment
Environment.
- What environmental and labour issues affect indigo dyeing, with positions attributed? provenance
- Is the information current? boundary
What the second pass must settle
- Should the plant genus Indigofera be a separate entry?
- How should natural versus synthetic indigo be documented?
- How should the rainbow-colour debate be presented?