css-color-6.json

{
  "spec": {
    "title": "CSS Color Module Level 6",
    "url": "https://drafts.csswg.org/css-color-6/"
  },
  "properties": [],
  "atrules": [],
  "selectors": [],
  "values": [
    {
      "name": "contrast-color()",
      "prose": "The contrast-color() functional notation identifies a sufficiently contrasting color against a specified background or foreground color without requiring manual computation.",
      "type": "function",
      "value": "contrast-color( [ [ <color> && [ tbd-fg | tbd-bg ] && <target-contrast>? ] | [ <color> && [ tbd-fg | tbd-bg ] && <target-contrast>, <color># ] ] )",
      "values": [
        {
          "name": "text",
          "prose": "The tbd-fg and tbd-bg keywords indicate the role of the base color in calculating the contrast: as text against a list of candidate background colors (text) or as a background against a list of candidate text colors. (The effective contrast of a pair of colors depends on their usage.)",
          "type": "value",
          "value": "text"
        },
        {
          "name": "wcag2",
          "prose": "The wcag2 keyword and wcag2() functional notations indicate use of the [WCAG21] luminance contrast algorithm. Their syntax is:",
          "type": "value",
          "value": "wcag2"
        },
        {
          "name": "wcag2()",
          "prose": "The wcag2 keyword and wcag2() functional notations indicate use of the [WCAG21] luminance contrast algorithm. Their syntax is:",
          "type": "function"
        }
      ]
    },
    {
      "name": "<target-contrast>",
      "prose": "The <target-contrast> argument specifies the contrast algorithm(s) to use. If no color candidates have been provided, <target-contrast> may be omitted, in which case a UA-chosen algorithm is used.",
      "type": "type",
      "value": "<wcag2>"
    },
    {
      "name": "<wcag2>",
      "type": "type",
      "value": "wcag | wcag2([<number> | [ aa | aaa ] && large? ])"
    }
  ]
}