diff --git a/frontend/src/routes/components/header.tsx b/frontend/src/routes/components/header.tsx
index ba0fb1defdb2eae4c18ae7553d7ce15310c5d6e8..ce4cdcaba08ac4a380a37883c4cd53eb0df5b59d 100644
--- a/frontend/src/routes/components/header.tsx
+++ b/frontend/src/routes/components/header.tsx
@@ -13,6 +13,7 @@ import { getHeaderLogo } from './logos'
 const StyledHeader = styled('header')(({ theme }) => ({
   color: theme.greg.textWhite,
   backgroundColor: theme.palette.primary.main,
+  ...(appInst === 'ntnu' && { backgroundColor: theme.palette.primary.light}),
 
   a: {
     textDecoration: 'none',
diff --git a/frontend/src/themes/ntnu.ts b/frontend/src/themes/ntnu.ts
index 0ff2a6399eb707397f8236107e71de540465337b..830ac71f2195ed5a3afeef53f87dd0ac155d199c 100644
--- a/frontend/src/themes/ntnu.ts
+++ b/frontend/src/themes/ntnu.ts
@@ -12,8 +12,8 @@ const ntnuTheme: ThemeOptions = {
   },
   palette: {
     primary: {
-      main: '#ffffff',
-      light: '#6096d0',
+      main: '#00509e',
+      light: '#ffffff',
     },
     secondary: {
       main: '#00509e',