diff --git a/.changeset/rainbowme-command.md b/.changeset/rainbowme-command.md
new file mode 100644
index 0000000000..263d03aa71
--- /dev/null
+++ b/.changeset/rainbowme-command.md
@@ -0,0 +1,5 @@
+---
+sable: patch
+---
+
+Add a `/rainbowme` command for sending rainbow-formatted action messages.
diff --git a/src/app/features/room/RoomInput.tsx b/src/app/features/room/RoomInput.tsx
index 6fe77af887..6a170c996d 100644
--- a/src/app/features/room/RoomInput.tsx
+++ b/src/app/features/room/RoomInput.tsx
@@ -890,7 +890,7 @@ export const RoomInput = forwardRef<HTMLDivElement, RoomInputProps>(
         toMatrixCustomHTML(serializedChildren, {
           stripNickname: true,
           nickNameReplacement: nicknameReplacement,
-          forEmote: commandName === Command.Me,
+          forEmote: commandName === Command.Me || commandName === Command.RainbowMe,
           room,
         })
       );
@@ -971,7 +971,7 @@ export const RoomInput = forwardRef<HTMLDivElement, RoomInputProps>(
               toMatrixCustomHTML(serializedChildren, {
                 stripNickname: true,
                 nickNameReplacement: nicknameReplacement,
-                forEmote: commandName === Command.Me,
+                forEmote: commandName === Command.Me || commandName === Command.RainbowMe,
                 room,
               })
             );
diff --git a/src/app/hooks/useCommands.ts b/src/app/hooks/useCommands.ts
index 9c9451be8a..6bdfdf7a4c 100644
--- a/src/app/hooks/useCommands.ts
+++ b/src/app/hooks/useCommands.ts
@@ -265,6 +265,7 @@ export enum Command {
   Pronoun = 'pronoun',
   SPronoun = 'spronoun',
   Rainbow = 'rainbow',
+  RainbowMe = 'rainbowme',
   RawMsg = 'rawmsg',
   Raw = 'raw',
   RawAcc = 'rawacc',
@@ -1162,6 +1163,21 @@ export const useCommands = (mx: MatrixClient, room: Room): CommandRecord => {
           });
         },
       },
+      [Command.RainbowMe]: {
+        name: Command.RainbowMe,
+        description: 'Send a rainbow action message.',
+        exe: async (payload, html) => {
+          if (!payload || payload.trim().length === 0) return;
+          const inputHtml = html || payload;
+          const rainbowHtml = rainbowify(inputHtml);
+          await mx.sendMessage(room.roomId, {
+            msgtype: MsgType.Emote,
+            body: payload,
+            format: 'org.matrix.custom.html',
+            formatted_body: rainbowHtml,
+          });
+        },
+      },
       [Command.RawMsg]: {
         name: Command.RawMsg,
         description: