diff --git a/bin/alacritty-toggle.sh b/bin/alacritty-toggle.sh
new file mode 100755
index 0000000..dea8367
--- /dev/null
+++ b/bin/alacritty-toggle.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+#
+# Adjusts Alacritty color scheme to match macOS dark/light mode setting
+
+mode=$(defaults read -g AppleInterfaceStyle 2>/dev/null || echo "Light")
+alacritty_config=~/.config/alacritty/alacritty.toml
+
+if [ "$mode" = "Dark" ]; then
+    sed -i '' "s#tokyonight_day.toml#tokyonight_moon.toml#" $alacritty_config
+else
+    sed -i '' "s#tokyonight_moon.toml#tokyonight_day.toml#" $alacritty_config
+fi