diff --git a/app.py b/app.py
index dbb5ec5..8d535d4 100644
--- a/app.py
+++ b/app.py
@@ -494,6 +494,25 @@ def fmt_time(s):
     return f"{s//3600}h{(s%3600)//60:02d}m"
 app.jinja_env.filters['fmt_time'] = fmt_time
 
+_FRENCH_COLORS = {
+    'blanc': '#ffffff', 'noir': '#111111', 'gris': '#6b7280', 'argent': '#9ca3af',
+    'rouge': '#ef4444', 'rose': '#ec4899', 'fuchsia': '#d946ef',
+    'orange': '#f97316', 'jaune': '#eab308', 'or': '#d97706',
+    'vert': '#22c55e', 'olive': '#65a30d', 'emeraude': '#10b981',
+    'bleu': '#3b82f6', 'marine': '#1e3a8a', 'ciel': '#38bdf8', 'cyan': '#06b6d4',
+    'violet': '#8b5cf6', 'mauve': '#a855f7', 'indigo': '#6366f1',
+    'marron': '#92400e', 'beige': '#d4b896', 'creme': '#fef3c7',
+    'turquoise': '#14b8a6', 'or rose': '#fb7185',
+    'transparent': 'rgba(200,200,200,0.3)', 'naturel': '#f5f0e8',
+    'translucide': 'rgba(200,200,200,0.3)',
+}
+
+def css_color(value):
+    if not value:
+        return value
+    return _FRENCH_COLORS.get(value.strip().lower(), value)
+app.jinja_env.filters['css_color'] = css_color
+
 # ─── Dashboard ────────────────────────────────────────────────────────────────
 
 @app.route('/')
diff --git a/templates/material_form.html b/templates/material_form.html
index a91ac3e..a928f05 100644
--- a/templates/material_form.html
+++ b/templates/material_form.html
@@ -35,11 +35,34 @@
                      value="{{ material.brand if material else '' }}"
                      placeholder="Bambu, eSUN, Polymaker…">
             </div>
-            <div class="col-6">
+            <div class="col-12">
               <label class="form-label fw-semibold">Couleur</label>
-              <input type="text" name="color" class="form-control"
-                     value="{{ material.color if material else '' }}"
-                     placeholder="Rouge, #FF0000…">
+              <!-- Valeur soumise (hex) -->
+              <input type="hidden" name="color" id="colorValue"
+                     value="{{ (material.color | css_color) if material and material.color else '' }}">
+
+              <!-- Swatches preset -->
+              <div id="swatchGrid" class="mb-2 d-flex flex-wrap gap-1">
+                <!-- Générés par JS -->
+              </div>
+
+              <!-- Ligne : preview + picker natif + hex -->
+              <div class="d-flex align-items-center gap-2">
+                <span id="colorPreview"
+                      style="width:32px;height:32px;border-radius:6px;border:2px solid #dee2e6;
+                             flex-shrink:0;background:{{ (material.color | css_color) if material and material.color else '#cccccc' }}"></span>
+                <input type="color" id="nativePicker" class="form-control form-control-color p-0 border-0"
+                       style="width:36px;height:32px;cursor:pointer"
+                       value="{{ (material.color | css_color) if material and material.color else '#cccccc' }}"
+                       title="Choisir une couleur personnalisée">
+                <input type="text" id="hexInput" class="form-control form-control-sm font-monospace"
+                       style="max-width:110px" placeholder="#rrggbb"
+                       value="{{ (material.color | css_color) if material and material.color else '' }}">
+                <button type="button" class="btn btn-sm btn-outline-secondary" id="clearColor"
+                        title="Aucune couleur">
+                  <i class="bi bi-x"></i>
+                </button>
+              </div>
             </div>
             <div class="col-6">
               <label class="form-label fw-semibold">Prix (€/kg) *</label>
@@ -98,3 +121,126 @@
   {% endif %}
 </div>
 {% endblock %}
+
+{% block scripts %}
+<script>
+(function () {
+  // ── Palette de preset filaments ──────────────────────────────────────
+  const PRESETS = [
+    // Blancs / Neutres
+    { hex: '#ffffff', label: 'Blanc' },
+    { hex: '#f5f0e8', label: 'Naturel' },
+    { hex: '#e8e0d0', label: 'Crème' },
+    { hex: '#d4b896', label: 'Beige' },
+    { hex: '#9ca3af', label: 'Argent' },
+    { hex: '#6b7280', label: 'Gris' },
+    { hex: '#374151', label: 'Gris foncé' },
+    { hex: '#111111', label: 'Noir' },
+    // Rouges / Roses
+    { hex: '#fca5a5', label: 'Rose clair' },
+    { hex: '#f87171', label: 'Saumon' },
+    { hex: '#ef4444', label: 'Rouge' },
+    { hex: '#dc2626', label: 'Rouge foncé' },
+    { hex: '#ec4899', label: 'Rose' },
+    { hex: '#db2777', label: 'Fuchsia' },
+    // Oranges / Jaunes
+    { hex: '#fb923c', label: 'Orange clair' },
+    { hex: '#f97316', label: 'Orange' },
+    { hex: '#ea580c', label: 'Orange foncé' },
+    { hex: '#fbbf24', label: 'Jaune' },
+    { hex: '#d97706', label: 'Or' },
+    { hex: '#eab308', label: 'Jaune vif' },
+    // Verts
+    { hex: '#86efac', label: 'Vert clair' },
+    { hex: '#4ade80', label: 'Vert lime' },
+    { hex: '#22c55e', label: 'Vert' },
+    { hex: '#16a34a', label: 'Vert foncé' },
+    { hex: '#15803d', label: 'Forêt' },
+    { hex: '#65a30d', label: 'Olive' },
+    // Bleus / Cyans
+    { hex: '#7dd3fc', label: 'Bleu ciel' },
+    { hex: '#38bdf8', label: 'Ciel' },
+    { hex: '#06b6d4', label: 'Cyan' },
+    { hex: '#3b82f6', label: 'Bleu' },
+    { hex: '#2563eb', label: 'Bleu vif' },
+    { hex: '#1d4ed8', label: 'Bleu foncé' },
+    { hex: '#1e3a8a', label: 'Marine' },
+    // Violets / Mauves
+    { hex: '#c4b5fd', label: 'Lavande' },
+    { hex: '#a78bfa', label: 'Mauve' },
+    { hex: '#8b5cf6', label: 'Violet' },
+    { hex: '#7c3aed', label: 'Violet foncé' },
+    { hex: '#6366f1', label: 'Indigo' },
+    { hex: '#d946ef', label: 'Magenta' },
+    // Marrons
+    { hex: '#b45309', label: 'Marron clair' },
+    { hex: '#92400e', label: 'Marron' },
+    { hex: '#78350f', label: 'Marron foncé' },
+    // Spéciaux
+    { hex: 'rgba(200,200,200,0.3)', label: 'Translucide', css: 'repeating-linear-gradient(45deg,#ccc 0,#ccc 3px,#fff 3px,#fff 8px)' },
+  ];
+
+  const colorValue   = document.getElementById('colorValue');
+  const colorPreview = document.getElementById('colorPreview');
+  const nativePicker = document.getElementById('nativePicker');
+  const hexInput     = document.getElementById('hexInput');
+  const swatchGrid   = document.getElementById('swatchGrid');
+
+  // ── Construire les swatches ──────────────────────────────────────────
+  PRESETS.forEach(p => {
+    const btn = document.createElement('button');
+    btn.type = 'button';
+    btn.title = p.label;
+    btn.dataset.hex = p.hex;
+    btn.style.cssText = [
+      'width:24px', 'height:24px', 'border-radius:5px', 'border:2px solid transparent',
+      `background:${p.css || p.hex}`, 'cursor:pointer', 'padding:0', 'flex-shrink:0',
+      'transition:transform .1s,border-color .1s'
+    ].join(';');
+    btn.addEventListener('mouseenter', () => { btn.style.transform = 'scale(1.3)'; });
+    btn.addEventListener('mouseleave', () => { if (btn.dataset.hex !== colorValue.value) btn.style.transform = ''; });
+    btn.addEventListener('click', () => setColor(p.hex));
+    swatchGrid.appendChild(btn);
+  });
+
+  // ── Fonction centrale ────────────────────────────────────────────────
+  function setColor(hex) {
+    colorValue.value = hex;
+    hexInput.value   = hex;
+    colorPreview.style.background = hex;
+    if (/^#[0-9a-fA-F]{6}$/.test(hex)) nativePicker.value = hex;
+    // Highlight swatch actif
+    swatchGrid.querySelectorAll('button').forEach(b => {
+      const active = b.dataset.hex === hex;
+      b.style.borderColor = active ? '#ff6b35' : 'transparent';
+      b.style.transform   = active ? 'scale(1.3)'  : '';
+    });
+  }
+
+  // ── Native color picker ──────────────────────────────────────────────
+  nativePicker.addEventListener('input', () => setColor(nativePicker.value));
+
+  // ── Saisie hex manuelle ──────────────────────────────────────────────
+  hexInput.addEventListener('input', function () {
+    const v = this.value.trim();
+    if (/^#[0-9a-fA-F]{6}$/.test(v)) setColor(v);
+    else { colorValue.value = v; colorPreview.style.background = v; }
+  });
+
+  // ── Effacer ──────────────────────────────────────────────────────────
+  document.getElementById('clearColor').addEventListener('click', () => {
+    colorValue.value = '';
+    hexInput.value   = '';
+    colorPreview.style.background = '#e5e7eb';
+    swatchGrid.querySelectorAll('button').forEach(b => {
+      b.style.borderColor = 'transparent';
+      b.style.transform   = '';
+    });
+  });
+
+  // ── Init ─────────────────────────────────────────────────────────────
+  const init = colorValue.value;
+  if (init) setColor(init);
+})();
+</script>
+{% endblock %}
diff --git a/templates/materials.html b/templates/materials.html
index 1af8d55..7445114 100644
--- a/templates/materials.html
+++ b/templates/materials.html
@@ -100,7 +100,7 @@
           <td>
             {% if m.color %}
             <span class="d-inline-flex align-items-center gap-1">
-              <span style="width:14px;height:14px;border-radius:50%;background:{{ m.color }};border:1px solid #ccc;display:inline-block"></span>
+              <span style="width:14px;height:14px;border-radius:50%;background:{{ m.color | css_color }};border:1px solid #ccc;display:inline-block"></span>
               {{ m.color }}
             </span>
             {% else %}—{% endif %}