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orange

vr.tr.orange-q39338 · thing-q39338

Let an agent handle orange by colour specification, uses such as safety signalling, symbolism and accessibility.

Thing Registry Cross-cutting context XCT.QLT
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Specification Which orange.

Code

Colour system.

Code

Colour specification.

  1. Which colour system and code define this orange? definition
  2. Which variant is it? definition

Perception

Lighting.

Perception

Perception.

  1. How does lighting change its appearance? definition
  2. Is it fluorescent? definition
Safety High visibility.

High visibility

Clothing.

High visibility

High-visibility clothing.

  1. Does the garment meet the high-visibility standard? provenance
  2. Which class? definition

Signs

Safety colours.

Signs

Safety signs.

  1. What does orange mean on safety signs here? provenance
  2. Which standard applies? provenance
Design Accessibility.

Contrast

Legibility.

Contrast

Contrast.

  1. Does text on this orange meet contrast guidelines? boundary
  2. What ratio? measurement

Colour vision

Deficiency.

Colour vision

Colour vision deficiency.

  1. Can people with colour vision deficiency tell it apart from red or green? boundary
  2. Is a second cue used? boundary
Culture Meaning.

Symbolism

Associations.

Symbolism

Symbolism.

  1. What does orange signify in this culture or context? provenance
  2. Is it tied to a political or religious group? boundary

Senses

Fruit.

Senses

Fruit sense.

  1. Is the fruit meant instead? boundary
  2. Which entry fits? action

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
thing
Plane
XCT
Domain
XCT.QLT
Other names and narrower kinds
brownish orange, safety orange, lobster red, Bright Mango, yellowish-orange, international orange, RAL 2004, burnt orange, light orange, minium, dark orange, peru

What it is Filled

The colour between red and yellow on the visible spectrum, around 590-620 nm, named after the fruit; variants include safety orange, international orange and yellowish or brownish oranges.

Why it exists Filled

Let an agent handle orange by colour specification, uses such as safety signalling, symbolism and accessibility.

Distinguishing features Filled

  • Between red and yellow
  • Highly visible
  • Used in safety signalling
  • Symbolism varies by culture

What robots and AI may and may not do Filled

Must not

  • Rely on orange alone to convey critical information without a second cue.
  • Use safety orange to imitate official warning or emergency markings and mislead people.
  • Claim one exact value is the only correct orange.
  • Pair orange with low-contrast backgrounds in safety or accessibility contexts.

Only with a human decision

  • Choosing colours for safety signs or high-visibility equipment.

May

  • Specify orange by a named colour space value and its source.
  • Check that orange text or signs have enough contrast to be read.

Moral aspects Filled

  • People with colour vision deficiency can confuse orange with red or green.
  • Orange carries political and religious meanings in some places.

Who is affected

  • People with colour vision deficiency
  • Workers relying on high-visibility gear

Owners Filled

Steward

Nobody: a colour is held in common.

Links to other meta-models Filled

parent

  • Q3142 - registry parent class
  • Q943 - registry parent class

related

  • color - category
  • red and yellow - spectrum
  • high-visibility clothing - safety
  • orange (fruit) - another sense

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.orange-q39338
  • Wikidata: Q39338 (https://www.wikidata.org/wiki/Q39338)
  • sRGB hex: #FFA500 (CSS orange) screen colour
  • ANSI safety orange: Z535 colour safety signs

Direct properties not applicable Not applicable

  • dominant wavelength: about 590-620 nm

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Wavelength about 590-620 nm
  • Named variants such as safety orange
  • Hex values such as #FFA500
  • A warm colour between red and yellow.

Capabilities and actions required Filled

  • specify it in colour systems
  • use it for high-visibility safety
  • check contrast
  • understand cultural meanings

Hazards and failure modes required Filled

  • Poor contrast with white text
  • Colour vision deficiency confusion with red and green

Standards and interfaces required Filled

  • EN ISO 20471 high-visibility clothing
  • ISO 3864 safety colours
  • WCAG contrast guidelines

Context of use required Filled

  • Design, safety signalling, branding and symbolism.
  • safety orange
  • international orange
  • yellowish orange
  • brownish orange and amber

Sources Filled

  1. Wikidata item Q39338: orange - identity and sense of the item
  2. Wikipedia: Orange (colour) - general description of the item

Open questions

  • Should named oranges be separate entries?
  • How should safety colour codes be linked?
  • How should the fruit sense be split off?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q39338/spec.json