actual final :)

main.py

@@ -4,42 +4,45 @@
 import colorsys
 
 
-def clip(value, lower, upper):
-    return lower if value < lower else upper if value > upper else value
-
-
-def generate_palette_hsv():
-    pixels = []
-    for x in range(256):
-        h = ((x % 16) / 16) * 360
-        s = clip((math.floor((x / 16) + 2) / 9) * 99, 0, 100)
-        v = clip(abs((math.floor(x / 16) - 16) / 9) * 99, 0, 100)
-        rgb = tuple(round(i * 255) for i in colorsys.hsv_to_rgb(h / 360, s / 100, v / 100))
-        pixels.append(rgb)
-        print(f"x: {x}, row: {math.floor(x / 16)}, hsv: {h},{s},{v}, rgb: {rgb}")
-
-    return pixels
-
-
+# for reference
 def unpack_rrrgggbb(uint8):
     r = (uint8 & 0b11100000) >> 5
     g = (uint8 & 0b00011100) >> 2
     b = (uint8 & 0b00000011)
     return r, g, b
 
 
+# for reference
 def pack_rrrgggbb(rgb: tuple):
     return int(rgb[2]) + (int(rgb[1]) << 2) + (int(rgb[0]) << 5)
 
 
+def clip(value, lower, upper):
+    return lower if value < lower else upper if value > upper else value
+
+
+def generate_palette_hsv(d: int):
+    pixels = []
+    for x in range(int(math.pow(d, 2))):
+        h = ((x % d) / d) * 360
+        s = clip((math.floor((x / d) + 1) / (d / 1.5)) * 99, 0, 100)
+        v = clip(abs((math.floor(x / d) - d) / (d / 1.5)) * 99, 0, 100)
+        rgb = tuple(round(i * 255) for i in colorsys.hsv_to_rgb(h / 360, s / 100, v / 100))
+        pixels.append(rgb)
+        # print(f"x: {x}, row: {math.floor(x / 16)}, hsv: {h},{s},{v}, rgb: {rgb}")
+
+    return pixels
+
+
 if __name__ == '__main__':
-    with Image.new('RGB', (16, 16)) as im:
-        pixels = generate_palette_hsv()
+    d = 16  # dimensions (d*d)
+    with Image.new('RGB', (d, d)) as im:
+        pixels = generate_palette_hsv(d)
         for p in range(len(pixels)):
-            x = (p % 16)
-            y = int((math.floor(p / 16) / 15) * 15)
+            x = (p % d)
+            y = int((math.floor(p / d) / (d - 1)) * (d - 1))
             im.putpixel((x, y), pixels[p])
-            #print(f"{x},{y}: {p}")
+            # print(f"{x},{y}: {p}")
 
         print(len(set(im.getdata())))
         im.show()