diff --git a/conntrackt/utils.py b/conntrackt/utils.py
--- a/conntrackt/utils.py
+++ b/conntrackt/utils.py
@@ -104,6 +104,12 @@ def get_distinct_colors(count, start=pal
         List of distinct palette.Color instances.
     """
 
+    # If zero is passed as count, return empty list.
+    if count == 0:
+        return []
+    elif count < 0:
+        raise ValueError("Count must be a non-negative integer value.")
+
     # Read the HSL from provided Color.
     hue, sat, lum = start.hsl["h"], start.hsl["s"], start.hsl["l"]