Tweak grey colours

tailwind.js

@@ -3,7 +3,7 @@ var colors = {
   'transparent': 'transparent',
 
   'black': '#222b2f',
-  'blue': '#0678be',
+  'blue': 'hsl(203, 94%, 38%)',
   'blue-dark': '#2779bd',
   'blue-lighter': '#bcdefa',
   'green-dark': '#1f9d55',
@@ -11,8 +11,8 @@ var colors = {
   'grey-dark': '#70818a',
   'grey-darker': '#596a73',
   'grey-darkest': '#364349',
-  'grey-light': '#dae4e9',
-  'grey-lighter': '#f2f2f2',
+  'grey-light': 'hsl(203, 25%, 88%)',
+  'grey-lighter': 'hsl(203, 22%, 95%)',
   'grey-lightest': '#fafcfc',
   'orange': '#f6993f',
   'red-dark': '#cc1f1a',