diff --git a/test/css/colors.css b/test/css/colors.css
index 235a9361..8e516aa9 100644
--- a/test/css/colors.css
+++ b/test/css/colors.css
@@ -49,4 +49,4 @@
 .unknowncolors {
   color: blue2;
   border: 2px solid superred;
-}
\ No newline at end of file
+}
diff --git a/test/css/comments.css b/test/css/comments.css
index c7189688..8a3647b5 100644
--- a/test/css/comments.css
+++ b/test/css/comments.css
@@ -45,8 +45,8 @@
   }
 */
 .selector, .lots, .comments {
-  color: grey, /* blue */ orange;
+  color: #808080, /* blue */ #ffa500;
 }
 #last {
-  color: blue;
+  color: #0000ff;
 }
diff --git a/test/css/css-3.css b/test/css/css-3.css
index 81a3535d..361a9084 100644
--- a/test/css/css-3.css
+++ b/test/css/css-3.css
@@ -1,6 +1,6 @@
 .comma-delimited {
   background: url(bg.jpg) no-repeat, url(bg.png) repeat-x top left, url(bg);
-  text-shadow: -1px -1px 1px red, 6px 5px 5px yellow;
+  text-shadow: -1px -1px 1px #ff0000, 6px 5px 5px #ffff00;
   -moz-box-shadow: 0pt 0pt 2px rgba(255, 255, 255, 0.4) inset, 0pt 4px 6px rgba(255, 255, 255, 0.4) inset;
 }
 @font-face {
diff --git a/test/css/css-escapes.css b/test/css/css-escapes.css
index 194c59fa..278d5576 100644
--- a/test/css/css-escapes.css
+++ b/test/css/css-escapes.css
@@ -8,7 +8,7 @@
   background: red;
 }
 .\34 04 strong {
-  color: fuchsia;
+  color: #ff00ff;
   font-weight: bold;
 }
 .trailingTest\+ {
diff --git a/test/css/css.css b/test/css/css.css
index 0a23ee14..773e2dd0 100644
--- a/test/css/css.css
+++ b/test/css/css.css
@@ -64,7 +64,7 @@ p + h1 {
   width: .1em;
   background-color: #009998;
   background-image: url(images/image.jpg);
-  background: -webkit-gradient(linear, left top, left bottom, from(red), to(blue));
+  background: -webkit-gradient(linear, left top, left bottom, from(#ff0000), to(#0000ff));
   margin: ;
   filter: alpha(opacity=100);
 }
diff --git a/test/css/import.css b/test/css/import.css
index 378beb3b..c567b1e5 100644
--- a/test/css/import.css
+++ b/test/css/import.css
@@ -1,14 +1,14 @@
 @import "import-test-d.css";
 #import {
-  color: red;
+  color: #ff0000;
 }
 .mixin {
   height: 10px;
-  color: red;
+  color: #ff0000;
 }
 #import-test {
   height: 10px;
-  color: red;
+  color: #ff0000;
   width: 10px;
   height: 30%;
 }
diff --git a/test/css/mixins-args.css b/test/css/mixins-args.css
index 41d606b0..804fe03d 100644
--- a/test/css/mixins-args.css
+++ b/test/css/mixins-args.css
@@ -6,7 +6,7 @@
   color: blue;
   width: 10px;
   height: 99%;
-  border: 2px dotted black;
+  border: 2px dotted #000000;
 }
 .one-arg {
   width: 15px;
@@ -54,7 +54,7 @@ body {
   color: red;
 }
 .arguments {
-  border: 1px solid black;
+  border: 1px solid #000000;
 }
 .arguments2 {
   border: 0px;
diff --git a/test/css/parens.css b/test/css/parens.css
index 209255f7..36487fe5 100644
--- a/test/css/parens.css
+++ b/test/css/parens.css
@@ -1,5 +1,5 @@
 .parens {
-  border: 2px solid black;
+  border: 2px solid #000000;
   margin: 1px 3px 16 3;
   width: 36;
   padding: 2px 36px;
diff --git a/test/css/scope.css b/test/css/scope.css
index 926bfc58..11feda89 100644
--- a/test/css/scope.css
+++ b/test/css/scope.css
@@ -2,14 +2,14 @@
   color: #998899;
 }
 .scope1 {
-  color: blue;
-  border-color: black;
+  color: #0000ff;
+  border-color: #000000;
 }
 .scope1 .scope2 {
-  color: blue;
+  color: #0000ff;
 }
 .scope1 .scope2 .scope3 {
-  color: red;
-  border-color: black;
-  background-color: white;
+  color: #ff0000;
+  border-color: #000000;
+  background-color: #ffffff;
 }
diff --git a/test/css/strings.css b/test/css/strings.css
index 13f93292..5a29661c 100644
--- a/test/css/strings.css
+++ b/test/css/strings.css
@@ -31,8 +31,8 @@
   url5: "http://lesscss.org/54.4";
 }
 .mix-mul-class {
-  color: blue;
-  color: red;
-  color: blue;
-  color: orange;
+  color: #0000ff;
+  color: #ff0000;
+  color: #0000ff;
+  color: #ffa500;
 }
diff --git a/test/css/whitespace.css b/test/css/whitespace.css
index d40d2fe0..32979854 100644
--- a/test/css/whitespace.css
+++ b/test/css/whitespace.css
@@ -17,14 +17,14 @@
   color: white;
 }
 .no-semi-column {
-  color: white;
+  color: #ffffff;
 }
 .no-semi-column {
   color: white;
   white-space: pre;
 }
 .no-semi-column {
-  border: 2px solid white;
+  border: 2px solid #ffffff;
 }
 .newlines {
   background: the,