diff --git a/wal b/wal
index 618e91a..14961c4 100755
--- a/wal
+++ b/wal
@@ -469,6 +469,15 @@ def export_xrdb(colors, export_file):
     subprocess.call(["xrdb", "-merge", export_file])
 
 
+def reload_i3():
+    """Reload i3 colors."""
+    if shutil.which("i3-msg"):
+        subprocess.Popen(["i3-msg", "reload"],
+                         stdout=subprocess.DEVNULL,
+                         stderr=subprocess.DEVNULL,
+                         preexec_fn=os.setpgrp)
+
+
 def export_colors(colors):
     """Export colors in various formats."""
     save_colors(ColorType.plain, CACHE_DIR / "colors", "plain hex colors")
@@ -487,6 +496,9 @@ def export_colors(colors):
     export_emacs(colors)
     export_xrdb(ColorType.xrdb, CACHE_DIR / "xcolors")
 
+    # i3 colors.
+    reload_i3()
+
 
 # }}}