diff --git a/frontend/textbooks.html b/frontend/textbooks.html
index 6232549..6478197 100644
--- a/frontend/textbooks.html
+++ b/frontend/textbooks.html
@@ -112,6 +112,9 @@
     .tb-progress.pink   .tb-progress-fill { background:#db2777; }
     .tb-progress.indigo .tb-progress-fill { background:#4f46e5; }
     .tb-progress.rose   .tb-progress-fill { background:#e11d48; }
+    .tb-progress.teal   .tb-progress-fill { background:#0d9488; }
+    .tb-progress.cyan   .tb-progress-fill { background:#0891b2; }
+    .tb-progress.emerald .tb-progress-fill { background:#059669; }
     .tb-progress-text {
       display:flex; justify-content:space-between; align-items:center;
       font-size:.74rem; color:var(--text-3);
@@ -139,6 +142,9 @@
     .tb-btn.primary.pink   { background:#db2777; }
     .tb-btn.primary.indigo { background:#4f46e5; }
     .tb-btn.primary.rose   { background:#e11d48; }
+    .tb-btn.primary.teal   { background:#0d9488; }
+    .tb-btn.primary.cyan   { background:#0891b2; }
+    .tb-btn.primary.emerald { background:#059669; }
     .tb-btn.primary:hover { filter:brightness(1.1); }
     .tb-btn svg { width:14px; height:14px; }