diff --git a/lib/rdoc/generator/template/darkfish/css/rdoc.css b/lib/rdoc/generator/template/darkfish/css/rdoc.css
index c2e0d80917..84e6b48104 100644
--- a/lib/rdoc/generator/template/darkfish/css/rdoc.css
+++ b/lib/rdoc/generator/template/darkfish/css/rdoc.css
@@ -348,16 +348,16 @@ main h6 {
 }
 
 /* 13. Syntax Highlighting */
-.ruby-constant   { color: #005cc5; }
-.ruby-keyword    { color: #d73a49; }
-.ruby-ivar       { color: #e36209; }
-.ruby-operator   { color: #005cc5; }
-.ruby-identifier { color: #0f6e81; }
-.ruby-node       { color: #22863a; }
-.ruby-comment    { color: #6a737d; }
-.ruby-regexp     { color: #032f62; }
-.ruby-value      { color: #005cc5; }
-.ruby-string     { color: #032f62; }
+.ruby-constant   { color: #0366d6; }  /* Bright blue for constants */
+.ruby-keyword    { color: #d73a49; }  /* Red for keywords */
+.ruby-ivar       { color: #e36209; }  /* Orange for instance variables */
+.ruby-operator   { color: #005cc5; }  /* Dark blue for operators */
+.ruby-identifier { color: #24292e; }  /* Dark gray for identifiers */
+.ruby-node       { color: #22863a; }  /* Green for interpolation */
+.ruby-comment    { color: #6a737d; }  /* Gray for comments */
+.ruby-regexp     { color: #032f62; }  /* Navy for regular expressions */
+.ruby-value      { color: #005cc5; }  /* Dark blue for numeric values */
+.ruby-string     { color: #22863a; }  /* Green for strings */
 
 code {
   background-color: #f0f4f8;  /* Match pre background */
@@ -465,6 +465,7 @@ main h5, main h6 {
 main p {
   margin: 0 0 0.5em;
   line-height: 1.5em;
+  font-weight: 400;  /* Added to ensure paragraphs are not too thin */
 }
 
 main pre {