diff --git a/styles/main.css b/styles/main.css
index 74b8fe0..b8ece22 100644
--- a/styles/main.css
+++ b/styles/main.css
@@ -17,3 +17,10 @@ body {
 h1, h2, h3 {
     color: var(--primary-colour);
 }
+
+a {
+    color: var(--text-link-unvisited-colour)
+}
+a:visited {
+    color: var(--text-link-visited-colour)
+}
\ No newline at end of file
diff --git a/styles/themes.css b/styles/themes.css
index 0d60543..b0d41c1 100644
--- a/styles/themes.css
+++ b/styles/themes.css
@@ -7,6 +7,8 @@
     --accent-colour: #4299e1;
     --page-background-colour: #f7fafc;
     --text-background-colour: white;
+    --text-link-unvisited-colour: #0000EE;
+    --text-link-visited-colour: #551A8B;
 }
 :root[data-theme="purple"] {
     /* Purple theme 
@@ -18,6 +20,10 @@
     --accent-colour: #C77DFF; /* light */
     --page-background-colour: #E0AAFF; /* very light */
     --text-background-colour: white;
+    /*
+    --text-link-unvisited-colour: #0000EE;
+    --text-link-visited-colour: #551A8B;
+    */
 }
 :root[data-theme="red"],
 :root[data-theme="light"] {
@@ -31,16 +37,12 @@
     --accent-colour: #E35053;
     --page-background-colour: #F6CACC;
     --text-background-colour: white;
+    /*
+    --text-link-unvisited-colour: #0000EE;
+    --text-link-visited-colour: #551A8B;
+    */
 }
 :root[data-theme="dark"] {
-    /*
-    --text-colour: #E0E0E0;
-    --primary-colour: #BB86FC;
-    --secondary-colour: #03DAC6;
-    --accent-colour: #FF4081;
-    --page-background-colour: #121212;
-    --text-background-colour: black;
-    */
     /*
     --text-colour: #E0E0E0; /* Light * /
     --primary-colour: #740000; /* Dark * /
@@ -49,12 +51,15 @@
     --page-background-colour: #121212; /* Dark * /
     --text-background-colour: black; /* Black * /
     */
+    /* Dark red theme */
     --text-colour: #E0E0E0; /* Light Gray */
     --primary-colour: #980000; /* Slightly lighter Dark Red */
     --secondary-colour: #D30000; /* Slightly lighter Medium Red */
     --accent-colour: #FF4081; /* Pink */
     --page-background-colour: #121212; /* Dark Gray */
     --text-background-colour: black; /* Dark Red */
+    --text-link-unvisited-colour: #ADD8E6; /* Light Blue */
+    --text-link-visited-colour: #D8BFD8; /* Thistle (Light Purple) */
 }
 
 /* Toggle light mode / dark mode button */