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diff --git a/blend/Blend.java b/blend/Blend.java
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+++ b/blend/Blend.java
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+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// This file is automatically generated. Do not modify it.
+
+package com.google.ux.material.libmonet.blend;
+
+import com.google.ux.material.libmonet.hct.Cam16;
+import com.google.ux.material.libmonet.hct.Hct;
+import com.google.ux.material.libmonet.utils.ColorUtils;
+import com.google.ux.material.libmonet.utils.MathUtils;
+
+/** Functions for blending in HCT and CAM16. */
+public class Blend {
+  private Blend() {}
+
+  /**
+   * Blend the design color's HCT hue towards the key color's HCT hue, in a way that leaves the
+   * original color recognizable and recognizably shifted towards the key color.
+   *
+   * @param designColor ARGB representation of an arbitrary color.
+   * @param sourceColor ARGB representation of the main theme color.
+   * @return The design color with a hue shifted towards the system's color, a slightly
+   *     warmer/cooler variant of the design color's hue.
+   */
+  public static int harmonize(int designColor, int sourceColor) {
+    Hct fromHct = Hct.fromInt(designColor);
+    Hct toHct = Hct.fromInt(sourceColor);
+    double differenceDegrees = MathUtils.differenceDegrees(fromHct.getHue(), toHct.getHue());
+    double rotationDegrees = Math.min(differenceDegrees * 0.5, 15.0);
+    double outputHue =
+        MathUtils.sanitizeDegreesDouble(
+            fromHct.getHue()
+                + rotationDegrees * MathUtils.rotationDirection(fromHct.getHue(), toHct.getHue()));
+    return Hct.from(outputHue, fromHct.getChroma(), fromHct.getTone()).toInt();
+  }
+
+  /**
+   * Blends hue from one color into another. The chroma and tone of the original color are
+   * maintained.
+   *
+   * @param from ARGB representation of color
+   * @param to ARGB representation of color
+   * @param amount how much blending to perform; 0.0 >= and <= 1.0
+   * @return from, with a hue blended towards to. Chroma and tone are constant.
+   */
+  public static int hctHue(int from, int to, double amount) {
+    int ucs = cam16Ucs(from, to, amount);
+    Cam16 ucsCam = Cam16.fromInt(ucs);
+    Cam16 fromCam = Cam16.fromInt(from);
+    Hct blended = Hct.from(ucsCam.getHue(), fromCam.getChroma(), ColorUtils.lstarFromArgb(from));
+    return blended.toInt();
+  }
+
+  /**
+   * Blend in CAM16-UCS space.
+   *
+   * @param from ARGB representation of color
+   * @param to ARGB representation of color
+   * @param amount how much blending to perform; 0.0 >= and <= 1.0
+   * @return from, blended towards to. Hue, chroma, and tone will change.
+   */
+  public static int cam16Ucs(int from, int to, double amount) {
+    Cam16 fromCam = Cam16.fromInt(from);
+    Cam16 toCam = Cam16.fromInt(to);
+    double fromJ = fromCam.getJstar();
+    double fromA = fromCam.getAstar();
+    double fromB = fromCam.getBstar();
+    double toJ = toCam.getJstar();
+    double toA = toCam.getAstar();
+    double toB = toCam.getBstar();
+    double jstar = fromJ + (toJ - fromJ) * amount;
+    double astar = fromA + (toA - fromA) * amount;
+    double bstar = fromB + (toB - fromB) * amount;
+    return Cam16.fromUcs(jstar, astar, bstar).toInt();
+  }
+}
+