diff --git a/app/modules/project/templates/project/inbox.html b/app/modules/project/templates/project/inbox.html
index 4840f8e..4e275c8 100644
--- a/app/modules/project/templates/project/inbox.html
+++ b/app/modules/project/templates/project/inbox.html
@@ -45,5 +45,5 @@
   {% endif %}
 </div>
 
-<script src="/static/project.js?v=20260917r" defer></script>
+<script src="/static/project.js?v=20260917s" defer></script>
 {% endblock %}
diff --git a/app/modules/project/templates/project/index.html b/app/modules/project/templates/project/index.html
index 926e2c9..5a8612a 100644
--- a/app/modules/project/templates/project/index.html
+++ b/app/modules/project/templates/project/index.html
@@ -398,5 +398,5 @@
 <script>
   window.PJ_COLORS = {{ ["#4573d2","#37a3a3","#62a420","#e8a33d","#e8384f","#aa62e3","#f06a6a","#5a6772"] | tojson }};
 </script>
-<script src="/static/project.js?v=20260917r" defer></script>
+<script src="/static/project.js?v=20260917s" defer></script>
 {% endblock %}
diff --git a/app/modules/project/templates/project/project.html b/app/modules/project/templates/project/project.html
index 6333475..d15a723 100644
--- a/app/modules/project/templates/project/project.html
+++ b/app/modules/project/templates/project/project.html
@@ -538,5 +538,5 @@
 </script>
 
 <script src="/static/vendor/vis-timeline/vis-timeline-graph2d.min.js"></script>
-<script src="/static/project.js?v=20260917r" defer></script>
+<script src="/static/project.js?v=20260917s" defer></script>
 {% endblock %}
diff --git a/app/static/project.js b/app/static/project.js
index 0df911c..b4ab762 100644
--- a/app/static/project.js
+++ b/app/static/project.js
@@ -145,6 +145,18 @@
     return move;
   }
 
+  // "#RRGGBB" → "rgba(r,g,b,alpha)" — 세션 헤더 배경처럼 색은 유지한 채
+  // 투명도만 입혀야 할 때 쓴다.
+  function hexToRgba(hex, alpha) {
+    const h = String(hex || "").replace("#", "");
+    const full = h.length === 3 ? h.split("").map(function (c) { return c + c; }).join("") : h;
+    const r = parseInt(full.substr(0, 2), 16);
+    const g = parseInt(full.substr(2, 2), 16);
+    const b = parseInt(full.substr(4, 2), 16);
+    if (isNaN(r) || isNaN(g) || isNaN(b)) return hex;
+    return "rgba(" + r + "," + g + "," + b + "," + alpha + ")";
+  }
+
   // 멤버 선택 후보 카드(아이콘 위 / 이름 가운데 / 체크박스 아래) — 새 프로젝트
   // 모달(홈·프로젝트 페이지)과 멤버 배정 모달 3곳이 전부 이 함수 하나를 쓴다.
   // /api/assignable-users 응답의 avatar 필드를 그대로 쓰므로 페이지별
@@ -2136,7 +2148,7 @@
         col.innerHTML =
           '<div class="pj-col-head' + (s.color ? " pj-col-head-colored" : "") + '"' +
             (canManage ? ' draggable="true"' : "") +
-            (s.color ? ' style="background:' + s.color + '"' : "") + '>' +
+            (s.color ? ' style="background:' + hexToRgba(s.color, 0.6) + '"' : "") + '>' +
             '<span class="pj-col-name">' + escapeHtml(s.name) + "</span>" +
             (s.is_done_stage ? '<span class="pj-chip pj-chip-sm">완료</span>' : "") +
             '<span class="pj-col-count"></span>' +