Update some colors to fix closeness.

lib/linguist/languages.yml

@@ -694,7 +694,7 @@ Cucumber:
   aliases:
   - gherkin
   ace_mode: text
-  color: "#2EF336"
+  color: "#5B2063"
 
 Cuda:
   type: programming
@@ -1988,7 +1988,7 @@ Markdown:
   - .mkdown
   - .ron
   tm_scope: source.gfm
-  color: "#DB0274"
+  color: "#083FA1"
 
 Mask:
   type: markup
@@ -2525,7 +2525,7 @@ Parrot Internal Representation:
 
 Pascal:
   type: programming
-  color: "#0B1999"
+  color: "#3846C6"
   extensions:
   - .pas
   - .dfm