"of colour" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "of colour (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "of color"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2016 March 3, David Thomson, The Guardian",
          "text": "People of colour were pushed forward at every moment, just as extras are hired to fill empty seats at the Oscars if stars drift away. It would have been little surprise if this show had cut to the valet parking line outside, with 83% of the valets of colour.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative spelling of of color"
      ],
      "id": "en-of_colour-en-adj-2DD4XKlp",
      "links": [
        [
          "of color",
          "of color#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "not-comparable"
      ]
    }
  ],
  "word": "of colour"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "of colour (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "of color"
        }
      ],
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "English uncomparable adjectives"
      ],
      "examples": [
        {
          "ref": "2016 March 3, David Thomson, The Guardian",
          "text": "People of colour were pushed forward at every moment, just as extras are hired to fill empty seats at the Oscars if stars drift away. It would have been little surprise if this show had cut to the valet parking line outside, with 83% of the valets of colour.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative spelling of of color"
      ],
      "links": [
        [
          "of color",
          "of color#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "not-comparable"
      ]
    }
  ],
  "word": "of colour"
}