{
  "schema_version": "detectable_design.area.v1",
  "area": {
    "slug": "downtown_sf",
    "name": "Downtown San Francisco",
    "state_name": "California",
    "state_code": "CA",
    "aliases": [
      "san francisco",
      "downtown sf",
      "downtown san francisco",
      "sf downtown"
    ]
  },
  "page_urls": [
    "https://detectable.design/downtown_sf/daytime"
  ],
  "methodology_url": "https://detectable.design/methodology",
  "last_updated": "2026-04-27",
  "recommendations": [
    {
      "schema_version": "detectable_design.recommendation.v1",
      "slug": "downtown_sf__running__daytime",
      "area": {
        "slug": "downtown_sf",
        "name": "Downtown San Francisco"
      },
      "light_condition": "daytime",
      "light_label": "Daytime",
      "source_activity": "running",
      "page_url": "https://detectable.design/downtown_sf/daytime",
      "data_url": "https://detectable.design/data/areas/downtown_sf.json",
      "methodology_url": "https://detectable.design/methodology",
      "last_updated": "2026-04-27",
      "confidence": "medium",
      "best_common_color": {
        "label": "White",
        "hex": "#F3F2EE"
      },
      "best_high_visibility_colors": [
        {
          "label": "Safety Red",
          "hex": "#FF2A2A"
        },
        {
          "label": "Fluorescent Yellow",
          "hex": "#D7FF00"
        }
      ],
      "hardest_common_colors_to_see": [
        {
          "label": "Dark Gray",
          "hex": "#4B4F54"
        },
        {
          "label": "Olive",
          "hex": "#7C8652"
        },
        {
          "label": "Green",
          "hex": "#3F8C57"
        }
      ],
      "common_color_comparison": [
        {
          "label": "White",
          "hex": "#F3F2EE",
          "mean_score": 0.4449,
          "relative_to_average_high_vis": 0.931,
          "relative_to_average_high_vis_percent": 93
        },
        {
          "label": "Red",
          "hex": "#C7433B",
          "mean_score": 0.4101,
          "relative_to_average_high_vis": 0.8581,
          "relative_to_average_high_vis_percent": 86
        },
        {
          "label": "Orange",
          "hex": "#D97B2B",
          "mean_score": 0.4005,
          "relative_to_average_high_vis": 0.838,
          "relative_to_average_high_vis_percent": 84
        },
        {
          "label": "Yellow",
          "hex": "#D9C957",
          "mean_score": 0.3985,
          "relative_to_average_high_vis": 0.834,
          "relative_to_average_high_vis_percent": 83
        },
        {
          "label": "Light Gray",
          "hex": "#C8CDD1",
          "mean_score": 0.378,
          "relative_to_average_high_vis": 0.7911,
          "relative_to_average_high_vis_percent": 79
        },
        {
          "label": "Pink",
          "hex": "#D970A9",
          "mean_score": 0.376,
          "relative_to_average_high_vis": 0.7869,
          "relative_to_average_high_vis_percent": 79
        },
        {
          "label": "Beige",
          "hex": "#CBB89A",
          "mean_score": 0.3601,
          "relative_to_average_high_vis": 0.7535,
          "relative_to_average_high_vis_percent": 75
        },
        {
          "label": "Black",
          "hex": "#1E1E20",
          "mean_score": 0.3318,
          "relative_to_average_high_vis": 0.6942,
          "relative_to_average_high_vis_percent": 69
        },
        {
          "label": "Light Blue",
          "hex": "#8FB9E8",
          "mean_score": 0.3222,
          "relative_to_average_high_vis": 0.6742,
          "relative_to_average_high_vis_percent": 67
        },
        {
          "label": "Blue",
          "hex": "#3F6FB5",
          "mean_score": 0.3118,
          "relative_to_average_high_vis": 0.6525,
          "relative_to_average_high_vis_percent": 65
        }
      ],
      "local_backdrop_elements": [
        {
          "label": "Glass / blue surfaces",
          "hex": "#67a0e1",
          "photo_share": 0.5,
          "percent_of_photos": 50
        },
        {
          "label": "Signs / painted accents",
          "hex": "#212a33",
          "photo_share": 0.2778,
          "percent_of_photos": 28
        },
        {
          "label": "Brick / warm surfaces",
          "hex": "#2b291e",
          "photo_share": 0.1667,
          "percent_of_photos": 17
        }
      ],
      "quick_advice": "If you are choosing from regular clothing, start with white and add reflective details at moving points. It lands at about 93% of the average high-vis score here.",
      "action_summary": "For Downtown San Francisco in daytime, white is the strongest common clothing color in the local street-scene analysis. Avoid dark gray, olive, and green when you can because those colors are harder to distinguish against local backdrops. If you own high-vis gear, safety red is still the strongest benchmark option. Confidence: medium.",
      "citation_text": "Detectable Design recommends White as the strongest common clothing color for Downtown San Francisco in daytime, with medium confidence. The hardest common colors to see are Dark Gray, Olive, and Green. This is based on local street-scene color analysis and is not a crash-risk guarantee.",
      "disclaimer": "This guidance is based on local street-scene analysis and general visibility principles. It is not a prediction of crash risk or a guarantee of safety."
    }
  ]
}