{
  "openapi": "3.1.0",
  "info": {
    "title": "Color Palette API",
    "version": "1.0.0",
    "description": "Generate color palettes (complementary, triadic, analogous, tetradic, monochromatic, shades, tints) from a base color. Zero-key, CORS-enabled.",
    "contact": {
      "name": "Techtenstein",
      "url": "https://techtenstein.com",
      "email": "sathvickollu@gmail.com"
    },
    "license": {
      "name": "MIT",
      "url": "https://opensource.org/licenses/MIT"
    }
  },
  "servers": [
    {
      "url": "https://color-palette.techtenstein.com"
    }
  ],
  "paths": {
    "/palette": {
      "get": {
        "summary": "Generate a palette from a base color",
        "parameters": [
          {
            "name": "color",
            "in": "query",
            "required": true,
            "schema": {
              "type": "string"
            },
            "description": "Base color as hex (#RRGGBB or RRGGBB) or hsl(H,S,L)"
          },
          {
            "name": "scheme",
            "in": "query",
            "required": false,
            "schema": {
              "type": "string",
              "enum": [
                "complementary",
                "triadic",
                "analogous",
                "tetradic",
                "split-complementary",
                "monochromatic",
                "shades",
                "tints"
              ],
              "default": "complementary"
            }
          },
          {
            "name": "count",
            "in": "query",
            "required": false,
            "schema": {
              "type": "integer",
              "default": 5,
              "minimum": 2,
              "maximum": 12
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Palette",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "/random": {
      "get": {
        "summary": "Random palette",
        "parameters": [
          {
            "name": "count",
            "in": "query",
            "required": false,
            "schema": {
              "type": "integer",
              "default": 5,
              "minimum": 2,
              "maximum": 12
            }
          },
          {
            "name": "scheme",
            "in": "query",
            "required": false,
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Palette"
          }
        }
      }
    },
    "/convert": {
      "get": {
        "summary": "Convert a color between hex/rgb/hsl",
        "parameters": [
          {
            "name": "color",
            "in": "query",
            "required": true,
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "All formats"
          }
        }
      }
    },
    "/contrast": {
      "get": {
        "summary": "WCAG contrast ratio between two colors",
        "parameters": [
          {
            "name": "fg",
            "in": "query",
            "required": true,
            "schema": {
              "type": "string"
            }
          },
          {
            "name": "bg",
            "in": "query",
            "required": true,
            "schema": {
              "type": "string"
            }
          }
        ],
        "responses": {
          "200": {
            "description": "Ratio + AA/AAA pass"
          }
        }
      }
    },
    "/health": {
      "get": {
        "summary": "Health",
        "responses": {
          "200": {
            "description": "OK"
          }
        }
      }
    }
  }
}