diff --git a/src/App.tsx b/src/App.tsx
index ce5064e..670b587 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -18,7 +18,7 @@ function App() {
   }, [setMessage, message]);
 
   return (
-    <div className="gradient min-h-screen">
+    <div className="bg-grey-100 min-h-screen">
       <Header />
       <div className="container mx-auto pt-6">
         <Balance />
diff --git a/src/components/header.tsx b/src/components/header.tsx
index 800bbe1..56fbb92 100644
--- a/src/components/header.tsx
+++ b/src/components/header.tsx
@@ -19,7 +19,7 @@ function Header() {
   };
 
   return (
-    <div id="header" className="w-full text-white">
+    <div id="header" className="w-full text-white bg-blue-700">
       <div className="w-full container mx-auto flex flex-wrap items-center mt-0 py-2">
         <a
           className="toggleColour text-white no-underline hover:no-underline font-bold text-2xl lg:text-4xl"
diff --git a/src/index.css b/src/index.css
index 30559c3..17df0e7 100644
--- a/src/index.css
+++ b/src/index.css
@@ -15,7 +15,3 @@ code {
   font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
     monospace;
 }
-
-.gradient {
-  background: linear-gradient(90deg, #d53369 0%, #daae51 100%);
-}
diff --git a/tailwind.config.js b/tailwind.config.js
index 5a66654..ded038a 100644
--- a/tailwind.config.js
+++ b/tailwind.config.js
@@ -1,10 +1,96 @@
-/** @type {import('tailwindcss').Config} */
 module.exports = {
   content: [
-    "./src/**/*.{js,jsx,ts,tsx}",
+    "./src/**/*.{ts,tsx}",
   ],
   theme: {
-    extend: {},
+    colors: {
+      white: '#FFFFFF',
+      black: '#263238',
+      blue: {
+        900: '#002978',
+        800: '#0D40A1',
+        700: '#155CC0',
+        600: '#196DD2',
+        500: '#1E7EE5',
+        400: '#429CF5',
+        300: '#6CB6FF',
+        200: '#99CCFF',
+        100: '#B7DBFF',
+      },
+      grey: {
+        900: '#2C3E5A',
+        800: '#374E72',
+        700: '#42608B',
+        600: '#4C6C9F',
+        500: '#7F97BD',
+        400: '#BCC8DC',
+        300: '#D5DDEC',
+        200: '#F0F3FA',
+        100: '#FBFCFD',
+      },
+      alert: {
+        600: '#641919',
+        500: '#F44336',
+        400: '#E57373',
+        300: '#FFF2F4',
+      },
+      positive: {
+        600: '#143906',
+        500: '#689F38',
+        400: '#9CCC65',
+        300: '#EFF8E4',
+        200: '#F1FAF1',
+      },
+      neutral: {
+        600: '#5B2D0A',
+        500: '#FFA000',
+        400: '#FFCA28',
+        300: '#FFF9E8',
+      },
+    },
+    fontFamily: {
+      sans: ['Montserrat'],
+    },
+    fontSize: {
+      disclaimer: '12pt',
+      body: '14pt',
+      title: '20pt',
+      large: '24pt',
+    },
+    boxShadow: {
+      shadow: [
+        '0px 0px 1px rgba(0, 41, 120, 0.05),',
+        '0px 2px 4px rgba(30, 126, 229, 0.1);',
+      ].join(' '),
+      sm: [
+        '0px 0px 1px rgba(0, 41, 120, 0.05),',
+        '0px 0.5px 2px rgba(30, 126, 229, 0.1);',
+      ].join(' '),
+      md: [
+        '0px 0px 2px rgba(0, 41, 120, 0.05),',
+        '0px 4px 8px rgba(30, 126, 229, 0.1);',
+      ].join(' '),
+      lg: [
+        '0px 2px 4px rgba(0, 41, 120, 0.05),',
+        '0px 8px 16px rgba(30, 126, 229, 0.1)',
+      ].join(' '),
+      xl: '0px 10px 30px rgba(30, 126, 229, 0.1)',
+      '2xl': [
+        '0px 2px 8px rgba(0, 41, 120, 0.05),',
+        '0px 20px 32px rgba(30, 126, 229, 0.1)',
+      ].join(' '),
+    },
+  },
+  extend: {
+    spacing: {
+      line: '1px',
+      tiny: '3px',
+      small: '6px',
+      base: '12px',
+      medium: '18px',
+      large: '24px',
+      wide: '48px',
+    },
   },
   plugins: [],
 }
\ No newline at end of file