diff --git a/README.md b/README.md
index 9be3988..e240bea 100644
--- a/README.md
+++ b/README.md
@@ -164,6 +164,7 @@ Le script lit `data/intermediate/parts_filtered.csv` et `data/final/stats.csv` (
 2. `python -m scripts.plot_colors_grid`
 
 Le script lit `data/intermediate/parts_filtered.csv` et `data/raw/colors.csv`, puis génère deux visuels : `figures/step12/colors_grid.png` pour l'ensemble des pièces (rechanges incluses) et `figures/step12/colors_grid_minifigs.png` pour la seule palette des minifigs. Les couleurs sont triées perceptuellement et mises en scène sur une grille hexagonale.
+Les codes couleurs 0033B2 et 05131D sont ignorés pour ne pas polluer les palettes.
 
 ### Étape 13 : palette de couleurs par set
 
diff --git a/lib/plots/colors_grid.py b/lib/plots/colors_grid.py
index 2f1d43e..919dceb 100644
--- a/lib/plots/colors_grid.py
+++ b/lib/plots/colors_grid.py
@@ -9,6 +9,7 @@ from matplotlib.lines import Line2D
 
 from lib.filesystem import ensure_parent_dir
 from lib.color_sort import lab_sort_key, sort_hex_colors_lab
+from lib.rebrickable.color_ignores import is_ignored_color_rgb
 from lib.rebrickable.parts_inventory import normalize_boolean
 from lib.rebrickable.stats import read_rows
 
@@ -30,6 +31,8 @@ def load_used_colors(parts_path: Path, colors_path: Path, minifig_only: bool = F
     colors_lookup = {(row["rgb"], normalize_boolean(row["is_trans"])): row["name"] for row in read_rows(colors_path)}
     totals: Dict[Tuple[str, str], int] = {}
     for row in rows:
+        if is_ignored_color_rgb(row["color_rgb"]):
+            continue
         if minifig_only and row.get("is_minifig_part") != "true":
             continue
         if not minifig_only and row.get("is_minifig_part") == "true":
diff --git a/lib/rebrickable/color_ignores.py b/lib/rebrickable/color_ignores.py
new file mode 100644
index 0000000..8cdbf26
--- /dev/null
+++ b/lib/rebrickable/color_ignores.py
@@ -0,0 +1,8 @@
+"""Couleurs à exclure des palettes."""
+
+IGNORED_COLOR_RGB = {"0033b2", "05131d"}
+
+
+def is_ignored_color_rgb(rgb: str) -> bool:
+    """Retourne vrai si le code couleur doit être ignoré."""
+    return rgb.strip().lower() in IGNORED_COLOR_RGB
diff --git a/lib/rebrickable/colors_by_set.py b/lib/rebrickable/colors_by_set.py
index 28adbca..6b97139 100644
--- a/lib/rebrickable/colors_by_set.py
+++ b/lib/rebrickable/colors_by_set.py
@@ -5,6 +5,7 @@ from pathlib import Path
 from typing import Dict, Iterable, List, Tuple
 
 from lib.filesystem import ensure_parent_dir
+from lib.rebrickable.color_ignores import is_ignored_color_rgb
 
 
 def load_parts(parts_path: Path) -> List[dict]:
@@ -28,6 +29,8 @@ def aggregate_colors_by_set(parts: Iterable[dict], colors_lookup: Dict[Tuple[str
     """Agrège les quantités par set et par couleur."""
     totals: Dict[Tuple[str, str, str, str, str], dict] = {}
     for row in parts:
+        if is_ignored_color_rgb(row["color_rgb"]):
+            continue
         key = (row["set_num"], row["set_id"], row["year"], row["color_rgb"], row["is_translucent"])
         existing = totals.get(key)
         if existing is None:
diff --git a/lib/rebrickable/minifig_heads.py b/lib/rebrickable/minifig_heads.py
index 8e79957..f3af0f3 100644
--- a/lib/rebrickable/minifig_heads.py
+++ b/lib/rebrickable/minifig_heads.py
@@ -5,6 +5,7 @@ from pathlib import Path
 from typing import Dict, Iterable, List, Set, Tuple
 
 from lib.rebrickable.colors_by_set import build_colors_lookup
+from lib.rebrickable.color_ignores import is_ignored_color_rgb
 from lib.rebrickable.stats import read_rows
 
 
@@ -39,6 +40,8 @@ def aggregate_head_colors_by_set(
             continue
         if row["is_spare"] == "true":
             continue
+        if is_ignored_color_rgb(row["color_rgb"]):
+            continue
         key = (row["set_num"], row["set_id"], row["year"], row["color_rgb"])
         existing = aggregates.get(key)
         if existing is None:
diff --git a/lib/rebrickable/set_color_swatches.py b/lib/rebrickable/set_color_swatches.py
index 6baf982..3ebbf6d 100644
--- a/lib/rebrickable/set_color_swatches.py
+++ b/lib/rebrickable/set_color_swatches.py
@@ -5,7 +5,10 @@ from collections import defaultdict
 from pathlib import Path
 from typing import Dict, Iterable, List, Sequence
 
+import colorsys
+
 from lib.filesystem import ensure_parent_dir
+from lib.rebrickable.color_ignores import is_ignored_color_rgb
 from lib.rebrickable.stats import read_rows
 
 
@@ -24,6 +27,39 @@ def load_sets_enriched(path: Path) -> Dict[str, dict]:
     return lookup
 
 
+def parse_rgb_hex(value: str) -> tuple[float, float, float]:
+    """Parse un code hexadécimal (RRGGBB) en composantes 0-1."""
+    normalized = value.strip()
+    if len(normalized) != 6:
+        return (0.0, 0.0, 0.0)
+    r = int(normalized[0:2], 16) / 255.0
+    g = int(normalized[2:4], 16) / 255.0
+    b = int(normalized[4:6], 16) / 255.0
+    return (r, g, b)
+
+
+def hue_bucket(degrees: float) -> int:
+    """Regroupe les teintes en grandes familles pour l'affichage."""
+    if degrees >= 330 or degrees < 30:
+        return 0  # rouge
+    if degrees < 90:
+        return 1  # jaune / orangé
+    if degrees < 150:
+        return 2  # vert
+    if degrees < 270:
+        return 3  # bleu
+    return 4  # violet
+
+
+def color_display_key(row: dict) -> tuple[float, int, float, str]:
+    """Clé de tri visuelle : teinte regroupée d'abord, puis luminosité."""
+    r, g, b = parse_rgb_hex(row["color_rgb"])
+    h, _s, v = colorsys.rgb_to_hsv(r, g, b)
+    degrees = h * 360.0
+    bucket = hue_bucket(degrees)
+    return (bucket, degrees, v, row["color_name"])
+
+
 def build_top_colors_by_set(rows: Iterable[dict], sets_lookup: Dict[str, dict], top_n: int = 5) -> List[dict]:
     """Sélectionne les top couleurs hors minifigs pour chaque set."""
     colors_by_set: Dict[str, List[dict]] = defaultdict(list)
@@ -31,6 +67,8 @@ def build_top_colors_by_set(rows: Iterable[dict], sets_lookup: Dict[str, dict],
         quantity = int(row["quantity_non_minifig"])
         if quantity <= 0:
             continue
+        if is_ignored_color_rgb(row["color_rgb"]):
+            continue
         set_num = row["set_num"]
         set_meta = sets_lookup.get(set_num)
         if set_meta is None:
@@ -49,7 +87,9 @@ def build_top_colors_by_set(rows: Iterable[dict], sets_lookup: Dict[str, dict],
     results: List[dict] = []
     for set_num, color_rows in colors_by_set.items():
         sorted_rows = sorted(color_rows, key=lambda r: (-r["quantity"], r["color_name"]))
-        for rank, color_row in enumerate(sorted_rows[:top_n], start=1):
+        selected = sorted_rows[:top_n]
+        ordered = sorted(selected, key=color_display_key)
+        for rank, color_row in enumerate(ordered, start=1):
             results.append(
                 {
                     "set_num": color_row["set_num"],
@@ -62,7 +102,7 @@ def build_top_colors_by_set(rows: Iterable[dict], sets_lookup: Dict[str, dict],
                     "quantity_non_minifig": str(color_row["quantity"]),
                 }
             )
-    results.sort(key=lambda r: (int(r["year"]), r["name"], r["set_num"], int(r["rank"])))
+    results.sort(key=lambda r: (int(r["year"]), r["set_num"], r["name"], int(r["rank"])))
     return results
 
 
diff --git a/tests/test_colors_by_set.py b/tests/test_colors_by_set.py
index 9311d9d..3858a60 100644
--- a/tests/test_colors_by_set.py
+++ b/tests/test_colors_by_set.py
@@ -42,6 +42,7 @@ def test_aggregate_colors_by_set(tmp_path: Path) -> None:
             ["3002", "FFFFFF", "false", "1000-1", "1000", "2020", "1", "true", "false"],
             ["3003", "000000", "true", "1000-1", "1000", "2020", "4", "false", "true"],
             ["4001", "FFFFFF", "false", "2000-1", "2000", "2021", "3", "false", "true"],
+            ["4002", "0033B2", "false", "2000-1", "2000", "2021", "5", "false", "false"],
         ],
     )
     write_csv(
@@ -50,6 +51,7 @@ def test_aggregate_colors_by_set(tmp_path: Path) -> None:
         [
             ["1", "White", "FFFFFF", "False", "0", "0", "0", "0"],
             ["2", "Trans-Black", "000000", "True", "0", "0", "0", "0"],
+            ["3", "Ignored Blue", "0033B2", "False", "0", "0", "0", "0"],
         ],
     )
 
diff --git a/tests/test_colors_grid_plot.py b/tests/test_colors_grid_plot.py
index f813968..6da1bd6 100644
--- a/tests/test_colors_grid_plot.py
+++ b/tests/test_colors_grid_plot.py
@@ -42,6 +42,7 @@ def test_plot_colors_grid(tmp_path: Path) -> None:
             ["3001", "FFFFFF", "false", "1000", "2", "false"],
             ["3002", "000000", "true", "1000", "5", "false"],
             ["3003", "FF0000", "false", "1000", "1", "true"],
+            ["3004", "0033B2", "false", "1000", "10", "false"],
         ],
     )
     write_csv(
diff --git a/tests/test_minifig_heads.py b/tests/test_minifig_heads.py
index 15ac236..0c8bc45 100644
--- a/tests/test_minifig_heads.py
+++ b/tests/test_minifig_heads.py
@@ -49,6 +49,7 @@ def test_extract_minifig_heads_and_colors(tmp_path: Path) -> None:
             ["3001", "FFFFFF", "false", "1000-1", "1000", "2020", "2", "false", "false"],
             ["3626b", "FFE1BD", "false", "2000-1", "2000", "2021", "2", "false", "true"],
             ["3626b", "FFE1BD", "false", "2000-1", "2000", "2021", "1", "true", "true"],
+            ["3626b", "0033B2", "false", "2000-1", "2000", "2021", "1", "false", "true"],
         ],
     )
     write_csv(
@@ -67,6 +68,7 @@ def test_extract_minifig_heads_and_colors(tmp_path: Path) -> None:
             ["1", "Light Flesh", "FFE1BD", "False", "0", "0", "0", "0"],
             ["2", "Medium Dark Flesh", "E7B68F", "False", "0", "0", "0", "0"],
             ["3", "White", "FFFFFF", "False", "0", "0", "0", "0"],
+            ["4", "Ignored Blue", "0033B2", "False", "0", "0", "0", "0"],
         ],
     )
 
diff --git a/tests/test_set_color_swatches.py b/tests/test_set_color_swatches.py
index 2ae1ce9..d5fabe6 100644
--- a/tests/test_set_color_swatches.py
+++ b/tests/test_set_color_swatches.py
@@ -22,6 +22,7 @@ def test_build_top_colors_by_set_selects_top5_non_minifig(tmp_path: Path) -> Non
         "123-1,123,2020,444444,false,Green,2,2,0,2\n"
         "123-1,123,2020,555555,false,Yellow,1,1,0,1\n"
         "123-1,123,2020,666666,false,Pink,1,1,0,1\n"
+        "123-1,123,2020,0033B2,false,Ignored Blue,50,50,0,50\n"
         "124-1,124,2021,aaaaaa,false,Gray,4,4,4,0\n",
     )
     sets_path = tmp_path / "sets_enriched.csv"