diff --git a/api/HTMLInputElement.json b/api/HTMLInputElement.json
index 84fe8c9805803f..3a5c88b2356eab 100644
--- a/api/HTMLInputElement.json
+++ b/api/HTMLInputElement.json
@@ -129,6 +129,44 @@
           }
         }
       },
+      "alpha": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/alpha",
+          "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-alpha",
+          "tags": [
+            "web-features:input"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "preview"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "alt": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/alt",
@@ -395,6 +433,44 @@
           }
         }
       },
+      "colorSpace": {
+        "__compat": {
+          "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/colorSpace",
+          "spec_url": "https://html.spec.whatwg.org/multipage/input.html#dom-input-colorspace",
+          "tags": [
+            "web-features:input"
+          ],
+          "support": {
+            "chrome": {
+              "version_added": false
+            },
+            "chrome_android": "mirror",
+            "edge": "mirror",
+            "firefox": {
+              "version_added": false
+            },
+            "firefox_android": "mirror",
+            "ie": {
+              "version_added": false
+            },
+            "oculus": "mirror",
+            "opera": "mirror",
+            "opera_android": "mirror",
+            "safari": {
+              "version_added": "preview"
+            },
+            "safari_ios": "mirror",
+            "samsunginternet_android": "mirror",
+            "webview_android": "mirror",
+            "webview_ios": "mirror"
+          },
+          "status": {
+            "experimental": true,
+            "standard_track": true,
+            "deprecated": false
+          }
+        }
+      },
       "defaultChecked": {
         "__compat": {
           "mdn_url": "https://developer.mozilla.org/docs/Web/API/HTMLInputElement/defaultChecked",
diff --git a/html/elements/input.json b/html/elements/input.json
index d98553a770d707..9b388f45b37a13 100644
--- a/html/elements/input.json
+++ b/html/elements/input.json
@@ -131,6 +131,44 @@
             }
           }
         },
+        "alpha": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#alpha",
+            "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-alpha",
+            "tags": [
+              "web-features:input"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "preview"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "alt": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#alt",
@@ -304,6 +342,44 @@
             }
           }
         },
+        "colorspace": {
+          "__compat": {
+            "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#colorspace",
+            "spec_url": "https://html.spec.whatwg.org/multipage/input.html#attr-input-colorspace",
+            "tags": [
+              "web-features:input"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": false
+              },
+              "firefox_android": "mirror",
+              "ie": {
+                "version_added": false
+              },
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": "preview"
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
+        },
         "dirname": {
           "__compat": {
             "mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Element/input#dirname",