{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.red","code":"thing-q3142","url":"https://ver.cy/models/thing/q3142/","name":"red","alternateNames":["cadmium orange","Tyrian purple","reddish-brown","carmine","chili pepper","Pantone 179 C","bordeaux","Tǔ huángsè","rusty red","Dawn Red","enji","purplish red"],"kind":"thing","status":"published","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"Cross-cutting context","entryKind":"thing","plane":"XCT","domain":["XCT.QLT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"The colour at the long-wavelength end of the visible spectrum, roughly 620-750 nm, perceived as the hue of blood or ripe tomatoes, with many shades from carmine to bordeaux.","purpose":"Let an agent specify red precisely and handle its strong conventional meanings, especially in safety signalling.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["A hue, not a pigment","The safety colour for prohibition, stop and fire equipment","Hard to distinguish from green for people with red-green colour vision deficiency","Meanings differ across cultures"],"structure":{"bundles":[{"id":"specification","name":"Specification","description":"Which red.","layers":[{"id":"value","name":"Value","description":"Colour space values.","findings":[{"id":"value-finding","name":"Colour value","description":"The exact value.","questions":[{"text":"Which exact red is meant, in which colour space?","kind":"measurement"},{"text":"Which named shade is closest?","kind":"definition"}]}]},{"id":"tolerance","name":"Tolerance","description":"Acceptable variation.","findings":[{"id":"tolerance-finding","name":"Tolerance","description":"The tolerance for matching.","questions":[{"text":"How much variation is acceptable?","kind":"measurement"},{"text":"Does a standard fix the value, such as for safety red?","kind":"provenance"}]}]}]},{"id":"signalling","name":"Signalling","description":"Red as a signal.","layers":[{"id":"safety","name":"Safety meaning","description":"Stop and prohibition.","findings":[{"id":"safety-finding","name":"Safety use","description":"The standard meaning.","questions":[{"text":"What does red mean in this safety context?","kind":"definition"},{"text":"Is it backed up by shape or text?","kind":"boundary"}]}]},{"id":"traffic","name":"Traffic signals","description":"Stop lights.","findings":[{"id":"traffic-finding","name":"Signal spec","description":"Signal colour specifications.","questions":[{"text":"Does the signal red meet the specification?","kind":"measurement"},{"text":"Is it distinguishable for colour-blind drivers?","kind":"boundary"}]}]}]},{"id":"accessibility","name":"Accessibility","description":"Seeing red.","layers":[{"id":"deficiency","name":"Colour vision deficiency","description":"Protan and deutan.","findings":[{"id":"deficiency-finding","name":"Colour-blind check","description":"How it appears to colour-blind viewers.","questions":[{"text":"How does this red appear to people with red-green deficiency?","kind":"measurement"},{"text":"What redundant cue is provided?","kind":"action"}]}]},{"id":"contrast","name":"Contrast","description":"Text and background.","findings":[{"id":"contrast-finding","name":"Contrast ratio","description":"The contrast ratio.","questions":[{"text":"What is the contrast ratio with its background?","kind":"measurement"},{"text":"Does it meet WCAG?","kind":"boundary"}]}]}]},{"id":"materials-and-culture","name":"Materials and culture","description":"Making red and what it means.","layers":[{"id":"pigments","name":"Pigments","description":"Sources of red.","findings":[{"id":"pigments-finding","name":"Pigment","description":"The pigment used.","questions":[{"text":"Which pigment or dye makes this red?","kind":"definition"},{"text":"Is it lightfast and safe?","kind":"boundary"}]}]},{"id":"culture","name":"Cultural meaning","description":"Meanings across cultures.","findings":[{"id":"culture-finding","name":"Meaning","description":"Meanings in the target culture.","questions":[{"text":"What does red signify in the target culture?","kind":"definition"},{"text":"Could it send an unintended message?","kind":"boundary"}]}]}]}]},"agentConduct":{"may":["Specify a red by its colour space values or wavelength range.","Use red for warnings consistently, with a second cue such as text or shape."],"mustNot":["Rely on red against green alone to carry meaning.","Use red so widely that warnings lose their meaning.","Recommend historical red pigments containing lead or mercury for unprotected use."],"requiresHuman":["Changing red signals or markings in safety systems such as traffic or alarms."]},"ethics":{"considerations":["Red marks danger and stop signals; diluting it puts people at risk.","Red carries different cultural meanings, from luck to mourning."],"affectedParties":["Colour-blind people","Road and machine users"]},"owners":{"steward":"Nobody owns the colour; standards bodies define safety and signal reds.","roles":[],"masterSystems":[]},"relations":[{"target":"Q1075","type":"parent","note":"registry parent class"},{"target":"color","type":"related","note":"a hue"},{"target":"safety sign","type":"related","note":"prohibition and fire"},{"target":"pigment","type":"related","note":"red pigments and dyes"},{"target":"orange and purple","type":"related","note":"boundary hues"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.red","Wikidata: Q3142 (https://www.wikidata.org/wiki/Q3142)","hex code: #FF0000 for pure sRGB red web","RAL code: 3000 series industrial reds"]},"properties":{"applicability":"not-applicable","items":["dominant wavelength: 620-750 nm"]},"recognition":{"applicability":"optional","items":["Hue angle around 0-20 degrees in HSL, or dominant wavelength 620-750 nm","Named shades: scarlet, crimson, carmine, bordeaux, Tyrian purple at the edge","Codes such as sRGB #FF0000 or Pantone 179 C","The hue of blood, fire engines and stop signs; shades range from orange-red to purple-red."]},"capabilities":{"applicability":"required","items":["specify it, in a colour space or system","use it, in signals and design, under safety conventions","produce it, with pigments or light","check contrast, for people with colour vision deficiency"]},"hazards":{"applicability":"required","items":["Red-green confusion for colour-blind users","Overuse diluting warning meaning","Toxic historical red pigments such as lead and mercury compounds"]},"interfaces":{"applicability":"required","items":["ISO 3864 safety colours","CIE traffic signal colour specifications","WCAG guidance against colour-only information"]},"context":{"applicability":"required","items":["Signalling danger, stop and prohibition, and expressing meanings from love to warning in design and culture.","shades: scarlet, crimson, carmine, vermilion, bordeaux, reddish-brown","pigments: cadmium red, iron oxide, carmine, sinopia","safety red in ISO 3864 and RAL 3000 range"]}},"sources":[{"title":"Wikidata item Q3142: red","url":"https://www.wikidata.org/wiki/Q3142","note":"identity and sense of the item"},{"title":"Wikipedia: Red","url":"https://en.wikipedia.org/wiki/Red","note":"general description of the item"}],"openQuestions":["Which reference red should the registry use?","How should cultural meanings be recorded without stereotyping?","Should red pigments be separate entries?"],"resources":{"spec":"/models/things/publications/thing-q3142/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q3142/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T04:52:39Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:58+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane XCT: no invented physical properties."},"score":1.0}}