diff --git a/src/procedures/phone-iot/device.js b/src/procedures/phone-iot/device.js
index 9e089a2d..a34093a5 100644
--- a/src/procedures/phone-iot/device.js
+++ b/src/procedures/phone-iot/device.js
@@ -42,6 +42,7 @@ const { setTimeout } = require("../../timers");
 // R - rotation vector
 // r - game rotation vector
 // S - step counter
+// s - set style (colors)
 // T - add custom text field
 // t - text field content
 // U - add custom image box
@@ -587,6 +588,21 @@ Device.prototype.setImage = async function (device, args, clientId) {
 
   throwIfErr(await response);
 };
+Device.prototype.setColor = async function (device, args, clientId) {
+  const { response, password } = this.rpcHeader("setcolor", clientId);
+  const id = parseId(args[0]);
+
+  const message = Buffer.alloc(18);
+  message.write("s", 0, 1);
+  message.writeBigInt64BE(common.gracefulPasswordParse(password), 1);
+  message.writeInt32BE(args[1], 9);
+  message.writeInt32BE(args[2], 13);
+  message[17] = id.length;
+
+  this.sendToDevice(Buffer.concat([message, id]));
+
+  throwIfErr(await response);
+};
 Device.prototype.setText = async function (device, args, clientId) {
   const { response, password } = this.rpcHeader("settext", clientId);
   const id = parseId(args[0]);
@@ -1212,6 +1228,7 @@ Device.prototype.onMessage = function (message) {
       });
     }
   } else if (command === "H") this._sendControlResult("settext", message);
+  else if (command === "s") this._sendControlResult("setcolor", message);
   else if (command === "e") this._sendControlResult("setlevel", message);
   else if (command === "i") this._sendControlResult("setimage", message);
   else if (command === "g") this._sendControlResult("addlabel", message);
diff --git a/src/procedures/phone-iot/phone-iot.js b/src/procedures/phone-iot/phone-iot.js
index 56fe3553..9896e2d2 100644
--- a/src/procedures/phone-iot/phone-iot.js
+++ b/src/procedures/phone-iot/phone-iot.js
@@ -752,6 +752,20 @@ if (PHONE_IOT_MODE === "native" || PHONE_IOT_MODE === "both") {
     arguments[4] = _.merge({}, DEFAULTS, options);
     return this._passToDevice("addRadioButton", arguments);
   };
+  /**
+   * Sets the primary and secondary colors of an existing control that supports custom colors.
+   * Some controls only use one color (not two), in which case the secondary will be ignored.
+   *
+   * @category Display
+   * @param {Device} device id of the device
+   * @param {String} id id of the control to modify
+   * @param {Color} primary primary color to use
+   * @param {Color=} secondary secondary color to use
+   */
+  PhoneIoT.prototype.setColor = function (device, id, primary, secondary) {
+    arguments[2] = secondary || this.getColor(0, 0, 0);
+    return this._passToDevice("setColor", arguments);
+  };
   /**
    * Sets the text content of the text-like control with the given ID.
    * This can be used on any control that has text, such as a button, label, or text field.
diff --git a/test/procedures/phone-iot.spec.js b/test/procedures/phone-iot.spec.js
index 0973bf48..bdc98d71 100644
--- a/test/procedures/phone-iot.spec.js
+++ b/test/procedures/phone-iot.spec.js
@@ -51,6 +51,7 @@ describe(utils.suiteName(__filename), function () {
     ["magnitude", ["vec"]],
     ["normalize", ["vec"]],
     ["setText", ["device", "id", "text"]],
+    ["setColor", ["device", "id", "primary", "secondary"]],
     ["getText", ["device", "id"]],
     ["setCredentials", ["device", "password"]],
     ["getPressure", ["device"]],