diff --git a/crates/theme2/util/hex_to_hsla.py b/crates/theme2/util/hex_to_hsla.py
new file mode 100644
index 0000000000000000000000000000000000000000..f741b9336589f35f9f7b8371579344a58b6ddfd3
--- /dev/null
+++ b/crates/theme2/util/hex_to_hsla.py
@@ -0,0 +1,20 @@
+import colorsys
+import sys
+
+def hex_to_rgb(hex):
+    hex = hex.lstrip('#')
+    return tuple(int(hex[i:i+2], 16) for i in (0, 2, 4))
+
+def rgb_to_hsla(rgb):
+    h, l, s = colorsys.rgb_to_hls(rgb[0]/255.0, rgb[1]/255.0, rgb[2]/255.0)
+    return (round(h * 360, 1), round(s * 100, 1), round(l * 100, 1), 1.0)
+
+def hex_to_hsla(hex):
+    return rgb_to_hsla(hex_to_rgb(hex))
+
+if len(sys.argv) != 2:
+    print("Usage: python util/hex_to_hsla.py <hex>")
+else:
+    hex_color = sys.argv[1]
+    h, s, l, a = hex_to_hsla(hex_color)
+    print(f"hsla({h} / 360., {s} / 100., {l} / 100., {a})")