use full hexadecimal color codes

resources/css/style.css

@@ -8,7 +8,7 @@ html {
 body {
     color: #4F4F4F;
     font-size: 0.85em;
-    background-color: #fff;
+    background-color: #FFFFFF;
     min-height: 100%;
 }
 
@@ -131,7 +131,7 @@ main form table #username, main form table #password {
 }
 .wizard > .actions .disabled a, .wizard > .actions .disabled a: hover, .wizard > .actions .disabled a:active {
     background: none repeat scroll 0% 0% #9DC8E2;
-    color: #fff;
+    color: #FFFFFF;
     border: 2px solid #9DC8E2;
 }
 .wizard > .content > .body label[for="sp_entityid"] {
@@ -140,7 +140,7 @@ main form table #username, main form table #password {
     font-weight: bold;
 }
 .wizard > .content > .body label.error {
-    color: #fff;
+    color: #FFFFFF;
     width: 100%;
     margin-left: 0;
     background: #f04124;
@@ -198,7 +198,7 @@ main form table #username, main form table #password {
 }
 .accounts_profile table caption {
     background-color: #FF8547;
-    color: #fff;
+    color: #FFFFFF;
     padding: 0.2rem 0 0.2rem 1rem;
     border-radius: 5px 5px 0 0;
     text-align: left;