diff --git a/ui/src/App.tsx b/ui/src/App.tsx
index 791e0df..34c346b 100644
--- a/ui/src/App.tsx
+++ b/ui/src/App.tsx
@@ -13,13 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import { createTheme, MantineProvider } from '@mantine/core';
+import { MantineProvider } from '@mantine/core';
 import { DatasetTable } from './components/DatasetTable/DatasetTable';
-
-const theme = createTheme({
-  /** Put your mantine theme override here */
-  fontFamily: '"Roboto", "Helvetica", "Arial", sans-serif',
-});
+import { theme } from './common/styling/theme';
 
 export function App() {
   return (
diff --git a/ui/src/common/styling/theme.ts b/ui/src/common/styling/theme.ts
new file mode 100644
index 0000000..c717ba6
--- /dev/null
+++ b/ui/src/common/styling/theme.ts
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2024 Open Reaction Database Project Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { colorsTuple, createTheme } from '@mantine/core';
+
+export const theme = createTheme({
+  fontFamily: '"Roboto", "Helvetica", "Arial", sans-serif',
+  colors: {
+    primary: [
+      '#D9F1FD',
+      '#A9DCF7',
+      '#7ECEF8',
+      '#53BDF5',
+      '#1AA6F1',
+      '#0083C9',
+      '#006296',
+      '#013958',
+      '#012436',
+      '#001926',
+    ],
+    secondary: [
+      '#E7EBEF',
+      '#DAE1E7',
+      '#CED7DE',
+      '#C2CDD6',
+      '#B6C3CD',
+      '#92A5B5',
+      '#7991A4',
+      '#637D92',
+      '#4A5E6D',
+      '#323F49',
+    ],
+    neutral: [
+      '#E8EBED',
+      '#D2D6DB',
+      '#BBC2C9',
+      '#A4ADB6',
+      '#828F9B',
+      '#64707D',
+      '#40474F',
+      '#2D3339',
+      '#2B2829',
+      '#121417',
+    ],
+    success: colorsTuple('#A4F4E7'),
+    warning: colorsTuple('#F4C790'),
+    error: colorsTuple('#E4626F'),
+    white: colorsTuple('#FCFCFC'),
+    black: colorsTuple('#090A0B'),
+  },
+  primaryColor: 'primary',
+  primaryShade: 5,
+  radius: {
+    xs: '2px',
+    sm: '6px',
+    md: '10px',
+    lg: '24px',
+    xl: '36px',
+  },
+  spacing: {
+    xs: '0.375rem',
+    sm: '0.75rem',
+    md: '1rem',
+    lg: '2rem',
+    xl: '3rem',
+  },
+});