{
  "$description": "Brand: MIT (mit@1.0.0)",
  "color": {
    "swatches": {
      "$description": "Source-of-truth color swatches from palette mit@1.0.0",
      "mit-red": {
        "$value": "#750014",
        "$type": "color",
        "$description": "The institutional crimson — primary brand colour."
      },
      "bright-red": {
        "$value": "#FF1423",
        "$type": "color",
        "$description": "Digital accent / activation red. Not a replacement for MIT Red."
      },
      "silver-gray": {
        "$value": "#8B959E",
        "$type": "color",
        "$description": "Core neutral — cool silver used alongside MIT Red."
      },
      "black": {
        "$value": "#000000",
        "$type": "color",
        "$description": "Body text and dark surfaces."
      },
      "white": {
        "$value": "#FFFFFF",
        "$type": "color",
        "$description": "Primary canvas in light mode."
      },
      "dark-gray-1": {
        "$value": "#40464C",
        "$type": "color",
        "$description": "Mid-dark text on light surfaces."
      },
      "dark-gray-2": {
        "$value": "#212326",
        "$type": "color",
        "$description": "Primary text / dark-mode canvas."
      },
      "dark-silver-gray": {
        "$value": "#626A73",
        "$type": "color",
        "$description": "Secondary text on light; deeper silver tone."
      },
      "light-silver-gray": {
        "$value": "#B8C2CC",
        "$type": "color",
        "$description": "Quiet text on dark; light divider."
      },
      "light-gray-1": {
        "$value": "#F2F4F8",
        "$type": "color",
        "$description": "Soft surface tint on light canvas."
      },
      "light-gray-2": {
        "$value": "#DDE1E6",
        "$type": "color",
        "$description": "Border / divider on light canvas."
      },
      "dark-pink": {
        "$value": "#750062",
        "$type": "color",
        "$description": "Deep magenta — expanded accent."
      },
      "pink": {
        "$value": "#FF14F0",
        "$type": "color",
        "$description": "Saturated digital pink."
      },
      "light-pink": {
        "$value": "#FFB3FF",
        "$type": "color",
        "$description": "Pastel pink — illustration tint."
      },
      "dark-purple": {
        "$value": "#3E006B",
        "$type": "color",
        "$description": "Deep violet — expanded accent."
      },
      "purple": {
        "$value": "#9933FF",
        "$type": "color",
        "$description": "Saturated digital purple."
      },
      "light-purple": {
        "$value": "#BFB3FF",
        "$type": "color",
        "$description": "Pastel violet — illustration tint."
      },
      "dark-blue": {
        "$value": "#002896",
        "$type": "color",
        "$description": "Deep institutional blue — expanded accent."
      },
      "blue": {
        "$value": "#1966FF",
        "$type": "color",
        "$description": "Saturated digital blue."
      },
      "light-blue": {
        "$value": "#99EBFF",
        "$type": "color",
        "$description": "Pastel sky — illustration tint."
      },
      "dark-green": {
        "$value": "#004D1A",
        "$type": "color",
        "$description": "Deep forest green — expanded accent."
      },
      "green": {
        "$value": "#00AD00",
        "$type": "color",
        "$description": "Saturated digital green — success surface."
      },
      "light-green": {
        "$value": "#AAFF33",
        "$type": "color",
        "$description": "Pastel lime — illustration tint."
      },
      "yellow": {
        "$value": "#FFEB00",
        "$type": "color",
        "$description": "Saturated digital yellow — warning / highlight."
      }
    }
  },
  "font": {
    "$description": "Typography roles mapped to font atoms",
    "heading": {
      "family": {
        "$value": [
          "Inter",
          "-apple-system",
          "BlinkMacSystemFont",
          "Segoe UI",
          "Roboto",
          "Helvetica Neue",
          "Arial",
          "sans-serif"
        ],
        "$type": "fontFamily",
        "$description": "heading role → Inter (inter@1.0.0)"
      },
      "weight": {
        "100": {
          "$value": 100,
          "$type": "fontWeight"
        },
        "200": {
          "$value": 200,
          "$type": "fontWeight"
        },
        "300": {
          "$value": 300,
          "$type": "fontWeight"
        },
        "400": {
          "$value": 400,
          "$type": "fontWeight"
        },
        "500": {
          "$value": 500,
          "$type": "fontWeight"
        },
        "600": {
          "$value": 600,
          "$type": "fontWeight"
        },
        "700": {
          "$value": 700,
          "$type": "fontWeight"
        },
        "800": {
          "$value": 800,
          "$type": "fontWeight"
        },
        "900": {
          "$value": 900,
          "$type": "fontWeight"
        },
        "$description": "Available font weights"
      }
    },
    "body": {
      "family": {
        "$value": [
          "Inter",
          "-apple-system",
          "BlinkMacSystemFont",
          "Segoe UI",
          "Roboto",
          "Helvetica Neue",
          "Arial",
          "sans-serif"
        ],
        "$type": "fontFamily",
        "$description": "body role → Inter (inter@1.0.0)"
      },
      "weight": {
        "100": {
          "$value": 100,
          "$type": "fontWeight"
        },
        "200": {
          "$value": 200,
          "$type": "fontWeight"
        },
        "300": {
          "$value": 300,
          "$type": "fontWeight"
        },
        "400": {
          "$value": 400,
          "$type": "fontWeight"
        },
        "500": {
          "$value": 500,
          "$type": "fontWeight"
        },
        "600": {
          "$value": 600,
          "$type": "fontWeight"
        },
        "700": {
          "$value": 700,
          "$type": "fontWeight"
        },
        "800": {
          "$value": 800,
          "$type": "fontWeight"
        },
        "900": {
          "$value": 900,
          "$type": "fontWeight"
        },
        "$description": "Available font weights"
      }
    },
    "serif": {
      "family": {
        "$value": [
          "Lora",
          "Iowan Old Style",
          "Apple Garamond",
          "Baskerville",
          "Times New Roman",
          "serif"
        ],
        "$type": "fontFamily",
        "$description": "serif role → Lora (lora@1.0.0)"
      },
      "weight": {
        "400": {
          "$value": 400,
          "$type": "fontWeight"
        },
        "500": {
          "$value": 500,
          "$type": "fontWeight"
        },
        "600": {
          "$value": 600,
          "$type": "fontWeight"
        },
        "700": {
          "$value": 700,
          "$type": "fontWeight"
        },
        "$description": "Available font weights"
      }
    },
    "mono": {
      "family": {
        "$value": [
          "JetBrainsMono Nerd Font",
          "JetBrains Mono",
          "Fira Code",
          "Menlo",
          "Monaco",
          "Consolas",
          "Liberation Mono",
          "monospace"
        ],
        "$type": "fontFamily",
        "$description": "mono role → JetBrainsMono Nerd Font (jetbrainsmono-nerdfont@1.0.0)"
      },
      "weight": {
        "100": {
          "$value": 100,
          "$type": "fontWeight"
        },
        "200": {
          "$value": 200,
          "$type": "fontWeight"
        },
        "300": {
          "$value": 300,
          "$type": "fontWeight"
        },
        "400": {
          "$value": 400,
          "$type": "fontWeight"
        },
        "500": {
          "$value": 500,
          "$type": "fontWeight"
        },
        "600": {
          "$value": 600,
          "$type": "fontWeight"
        },
        "700": {
          "$value": 700,
          "$type": "fontWeight"
        },
        "800": {
          "$value": 800,
          "$type": "fontWeight"
        },
        "$description": "Available font weights"
      }
    }
  },
  "$extensions": {
    "com.brand-atoms.rules": [
      {
        "type": "colorChoice",
        "target": "roles.colors.primary",
        "severity": "error",
        "rationale": "MIT Red (#750014) is the institutional crimson and the only colour authorized to act as the primary brand mark fill. Bright Red (#FF1423) is permitted as a digital activation accent but the MIT Brand Guide is explicit that Bright Red \"is not a replacement for MIT Red.\" The expanded-palette chromas are for editorial accent only and must not stand in for the primary institutional colour.\n",
        "allowed": [
          "mit-red",
          "bright-red"
        ],
        "forbidden": [
          "pink",
          "dark-pink",
          "purple",
          "blue",
          "green",
          "yellow"
        ]
      },
      {
        "type": "colorChoice",
        "target": "roles.colors.mark",
        "severity": "error",
        "rationale": "The MIT wordmark and seal are reproduced in MIT Red on light surfaces or in black for single-colour and embossed use. Bright Red and the expanded palette chromas are reserved for editorial accents and digital states, not for the institutional mark itself.\n",
        "allowed": [
          "mit-red",
          "black"
        ],
        "forbidden": [
          "bright-red",
          "silver-gray",
          "pink",
          "purple",
          "blue",
          "green",
          "yellow"
        ]
      },
      {
        "type": "contrastRatio",
        "target": "text-primary",
        "severity": "error",
        "rationale": "Dark Gray 2 (#212326) on white gives ~17:1 — clears AAA. As a research university with extensive long-form scholarly content (theses, OCW, lab pages), MIT's surfaces target the enhanced 7:1 floor rather than the AA 4.5:1 minimum.\n",
        "against": "background",
        "minRatio": 7,
        "standard": "WCAG-AAA"
      },
      {
        "type": "forbiddenTreatment",
        "target": "logo",
        "severity": "error",
        "rationale": "The MIT Brand Guide prohibits stretching, rotating, recolouring, outlining, applying drop-shadow or gradient fills, or placing the wordmark on busy photographic backgrounds. The mark renders only in approved colourways on uncluttered backgrounds with documented clear-space.\n",
        "treatments": [
          "stretched",
          "rotated",
          "recolored",
          "drop-shadow",
          "outlined",
          "gradient-fill",
          "on-busy-photo",
          "tilted",
          "cropped"
        ]
      },
      {
        "type": "enumMembership",
        "target": "typography.heading.fontWeight",
        "severity": "warning",
        "rationale": "MIT's editorial system on brand.mit.edu uses Regular (400), Medium (500), SemiBold (600), and Bold (700) for headings and body. Heavier display cuts (800/900) are not part of the documented institutional ramp.\n",
        "allowed": [
          "400",
          "500",
          "600",
          "700"
        ]
      },
      {
        "type": "fontPairing",
        "target": "typography.display",
        "severity": "error",
        "rationale": "MIT's typographic hierarchy pairs a large display sans with body sans at a minimum 1.5× ratio. Closing the gap below 1.5× destroys the scannability the brand guide assumes for hero modules and section openers.\n",
        "requires": "prose",
        "minSizeRatio": 1.5
      },
      {
        "type": "accessibilityRequirement",
        "target": "*",
        "severity": "warning",
        "rationale": "WCAG 2.1 Success Criterion 1.4.6 (Contrast Enhanced) — Level AAA. The institution's scholarly, long-form posture and obligations under Section 504 / ADA to its student and research community justify aiming above the AA floor where core text and background pairs allow it.\n",
        "standard": "WCAG-AAA",
        "criterion": "1.4.6"
      },
      {
        "type": "contextRestriction",
        "target": "roles.colors.error",
        "severity": "error",
        "rationale": "Bright Red (#FF1423) is MIT's digital activation / alert colour. Reusing it for confirmation or positive data-viz inverts the established meaning and conflicts with the digital colour's documented role.\n",
        "allowedContexts": [
          "error-state",
          "destructive-action",
          "validation-failure"
        ],
        "forbiddenContexts": [
          "confirmation",
          "completion",
          "data-viz-positive"
        ]
      },
      {
        "type": "compositionConstraint",
        "target": "roles.colors.primary",
        "severity": "recommendation",
        "rationale": "MIT Red reads cleanest on white, soft light gray, or black. Adjacent to Bright Red it loses chromatic separation; next to Pink or Dark Pink the warm reds compete for attention and obscure the institutional voice.\n",
        "pairsWith": [
          "white",
          "light-gray-1",
          "black",
          "silver-gray"
        ],
        "doesNotPairWith": [
          "pink",
          "dark-pink",
          "bright-red"
        ]
      }
    ],
    "com.brand-atoms.assets": [],
    "com.brand-atoms.provenance": {
      "source": "https://brand.mit.edu/color",
      "license": "Proprietary — All Rights Reserved (MIT trademarks)",
      "attribution": "Massachusetts Institute of Technology — visual identity captured from the MIT Brand Guide (brand.mit.edu). \"MIT,\" the MIT name, the MIT seal, and the MIT wordmark are registered trademarks of the Massachusetts Institute of Technology.\n",
      "importedDate": "2026-05-19",
      "notes": "MIT's institutional wordmark uses a proprietary face (the MIT Logo Letters); body and display type on brand.mit.edu pair a geometric sans with a serif. This atom references inter@1 as the open-source sans substitute, lora@1 as the serif substitute, and jetbrainsmono-nerdfont@1 for code. The proprietary faces are not publicly distributed and assets are kept empty per trademark policy.\n"
    },
    "com.brand-atoms.references": {
      "palette": "mit@1.0.0",
      "fonts": {
        "heading": "inter@1.0.0",
        "body": "inter@1.0.0",
        "serif": "lora@1.0.0",
        "mono": "jetbrainsmono-nerdfont@1.0.0"
      }
    }
  }
}