{
  "date": "2026-10-26",
  "evidence_id": "E-053",
  "method": "Screening from dominant flat foreground/background colors in user-supplied PNGs. Originals carry a Studio Display profile. Analysis copies were color-matched to the system sRGB ICC profile with macOS sips before sampling; originals are unchanged. WCAG relative-luminance formula applied to converted pixels. Rendering, scaling and antialiasing still limit a screenshot estimate. These are not authored CSS colors or conformance results.",
  "samples": [
    {
      "element": "Homepage introduction",
      "source": "42-user-homepage.png",
      "region_physical_pixels": [
        370,
        1200,
        2050,
        1300
      ],
      "foreground_rgb": [
        92,
        92,
        92
      ],
      "background_rgb": [
        243,
        243,
        243
      ],
      "approximate_ratio": 6.026,
      "sampled_dominant_colors": [
        [
          [
            243,
            243,
            243
          ],
          151203
        ],
        [
          [
            92,
            92,
            92
          ],
          6637
        ]
      ]
    },
    {
      "element": "Header search text",
      "source": "42-user-homepage.png",
      "region_physical_pixels": [
        1830,
        40,
        2500,
        100
      ],
      "foreground_rgb": [
        92,
        92,
        92
      ],
      "background_rgb": [
        229,
        229,
        229
      ],
      "approximate_ratio": 5.308,
      "sampled_dominant_colors": [
        [
          [
            229,
            229,
            229
          ],
          34923
        ],
        [
          [
            92,
            92,
            92
          ],
          2083
        ]
      ]
    },
    {
      "element": "Hero search placeholder",
      "source": "42-user-homepage.png",
      "region_physical_pixels": [
        470,
        775,
        1350,
        845
      ],
      "foreground_rgb": [
        147,
        147,
        147
      ],
      "background_rgb": [
        255,
        255,
        255
      ],
      "approximate_ratio": 3.072,
      "sampled_dominant_colors": [
        [
          [
            255,
            255,
            255
          ],
          56171
        ],
        [
          [
            147,
            147,
            147
          ],
          2425
        ]
      ]
    },
    {
      "element": "ZIP placeholder",
      "source": "43-user-course-list.png",
      "region_physical_pixels": [
        80,
        915,
        390,
        980
      ],
      "foreground_rgb": [
        147,
        147,
        147
      ],
      "background_rgb": [
        255,
        255,
        255
      ],
      "approximate_ratio": 3.072,
      "sampled_dominant_colors": [
        [
          [
            255,
            255,
            255
          ],
          18138
        ],
        [
          [
            147,
            147,
            147
          ],
          1156
        ]
      ]
    },
    {
      "element": "Card skill text",
      "source": "43-user-course-list.png",
      "region_physical_pixels": [
        700,
        1270,
        1110,
        1330
      ],
      "foreground_rgb": [
        116,
        116,
        116
      ],
      "background_rgb": [
        255,
        255,
        255
      ],
      "approximate_ratio": 4.674,
      "sampled_dominant_colors": [
        [
          [
            255,
            255,
            255
          ],
          23750
        ],
        [
          [
            116,
            116,
            116
          ],
          274
        ]
      ]
    },
    {
      "element": "Checkbox boundary",
      "source": "43-user-course-list.png",
      "region_physical_pixels": [
        55,
        1295,
        94,
        1345
      ],
      "foreground_rgb": [
        147,
        147,
        147
      ],
      "background_rgb": [
        255,
        255,
        255
      ],
      "approximate_ratio": 3.072,
      "sampled_dominant_colors": [
        [
          [
            255,
            255,
            255
          ],
          1506
        ],
        [
          [
            147,
            147,
            147
          ],
          416
        ]
      ]
    },
    {
      "element": "Campus input boundary",
      "source": "43-user-course-list.png",
      "region_physical_pixels": [
        55,
        595,
        620,
        690
      ],
      "foreground_rgb": [
        201,
        201,
        201
      ],
      "background_rgb": [
        255,
        255,
        255
      ],
      "approximate_ratio": 1.656,
      "sampled_dominant_colors": [
        [
          [
            255,
            255,
            255
          ],
          48798
        ],
        [
          [
            201,
            201,
            201
          ],
          1980
        ]
      ]
    }
  ],
  "interpretation": "The sampled introduction and header search grays are not demonstrated contrast failures. The lighter hero/ZIP placeholder samples warrant actual-style verification against normal-text contrast. Checkbox sample is near but above 3:1 under these assumptions. Input-border contrast alone does not establish a failure; identify whether the boundary is necessary for recognizing the control. Inactive Save is excluded from failure claims."
}