diff --git a/apps/admin-x-settings/package.json b/apps/admin-x-settings/package.json
index 6e47942169..ceb4a5682a 100644
--- a/apps/admin-x-settings/package.json
+++ b/apps/admin-x-settings/package.json
@@ -45,10 +45,10 @@
     "@ebay/nice-modal-react": "1.2.13",
     "@sentry/react": "7.70.0",
     "@tanstack/react-query": "4.36.1",
-    "@tryghost/color-utils": "0.1.24",
+    "@tryghost/color-utils": "0.2.0",
     "@tryghost/limit-service": "^1.2.10",
     "@tryghost/nql": "0.11.0",
-    "@tryghost/timezone-data": "0.3.8",
+    "@tryghost/timezone-data": "0.4.1",
     "@uiw/react-codemirror": "^4.21.9",
     "clsx": "2.0.0",
     "react": "18.2.0",
diff --git a/apps/admin-x-settings/src/components/settings/email/newsletters/NewsletterPreview.tsx b/apps/admin-x-settings/src/components/settings/email/newsletters/NewsletterPreview.tsx
index 3fc2be8ab1..5e29467872 100644
--- a/apps/admin-x-settings/src/components/settings/email/newsletters/NewsletterPreview.tsx
+++ b/apps/admin-x-settings/src/components/settings/email/newsletters/NewsletterPreview.tsx
@@ -84,9 +84,9 @@ const NewsletterPreview: React.FC<{newsletter: Newsletter}> = ({newsletter}) =>
 
     const colors = hasEmailCustomization ? {
         backgroundColor: backgroundColor(),
-        borderColor: borderColor(),
+        borderColor: borderColor() || undefined,
         secondaryBorderColor,
-        titleColor: titleColor(),
+        titleColor: titleColor() || undefined,
         textColor,
         secondaryTextColor
     } : {};
diff --git a/apps/admin-x-settings/src/typings.d.ts b/apps/admin-x-settings/src/typings.d.ts
index d8c213c872..f33c952a58 100644
--- a/apps/admin-x-settings/src/typings.d.ts
+++ b/apps/admin-x-settings/src/typings.d.ts
@@ -1,6 +1,4 @@
-declare module '@tryghost/timezone-data'
 declare module '@tryghost/limit-service'
-declare module '@tryghost/color-utils'
 declare module '@tryghost/nql'
 
 declare module '*.svg' {
diff --git a/yarn.lock b/yarn.lock
index 7d6b2dc617..b09cf15791 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7655,6 +7655,14 @@
   dependencies:
     color "^3.2.1"
 
+"@tryghost/color-utils@0.2.0":
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/@tryghost/color-utils/-/color-utils-0.2.0.tgz#c8a2cf06ec9fb8a7b4ed9bcfc2a96b1237b58eda"
+  integrity sha512-wvv/JwZYV/sy8hoNcXo0xRezUqOV/YLki1OqKUbJGPhqhv9PXsyauezXOyB+lSbhccPvZCuGQRE571VNf1JCfQ==
+  dependencies:
+    "@types/color" "3.0.2"
+    color "^3.2.1"
+
 "@tryghost/config-url-helpers@1.0.6":
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/@tryghost/config-url-helpers/-/config-url-helpers-1.0.6.tgz#0f5193b26305fda48236094be69f0b4b44ee2b92"
@@ -8115,6 +8123,11 @@
   resolved "https://registry.yarnpkg.com/@tryghost/timezone-data/-/timezone-data-0.3.8.tgz#413f8c7efa972bbdb186d95f4eab8d2799704010"
   integrity sha512-0CkCR6uRwANHvP8BJ/3EPPw4Z55u+WCBFM/+KR2KGCogGQwx8npIDA0zWUyWzKk+Y2Z9IqoHs+IlaA1v3t+Jdw==
 
+"@tryghost/timezone-data@0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@tryghost/timezone-data/-/timezone-data-0.4.1.tgz#67f648f8aeb7da565df7c96bf91bac66de0a7af2"
+  integrity sha512-jIUlJG1Yvv013HORnxOm5ucY+a0EPQ7YLudXUOpmUGU+ctVsubctzHd0Sn+ZIHm8x3wFJKjBSiu9ThtirEZM8g==
+
 "@tryghost/tpl@0.1.24":
   version "0.1.24"
   resolved "https://registry.yarnpkg.com/@tryghost/tpl/-/tpl-0.1.24.tgz#fcf585be02531baf651f2f7605466a3df744d0bc"
@@ -8326,6 +8339,25 @@
   resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.5.tgz#ae69bcbb1bebb68c4ac0b11e9d8ed04526b3562b"
   integrity sha512-mEo1sAde+UCE6b2hxn332f1g1E8WfYRu6p5SvTKr2ZKC1f7gFJXk4h5PyGP9Dt6gCaG8y8XhwnXWC6Iy2cmBng==
 
+"@types/color-convert@*":
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/@types/color-convert/-/color-convert-2.0.2.tgz#a5fa5da9b866732f8bf86b01964869011e2a2356"
+  integrity sha512-KGRIgCxwcgazts4MXRCikPbIMzBpjfdgEZSy8TRHU/gtg+f9sOfHdtK8unPfxIoBtyd2aTTwINVLSNENlC8U8A==
+  dependencies:
+    "@types/color-name" "*"
+
+"@types/color-name@*":
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/@types/color-name/-/color-name-1.1.2.tgz#bdeeb6fdcb78969033767951ab0cb26c7514a658"
+  integrity sha512-JWO/ZyxTKk0bLuOhAavGjnwLR73rUE7qzACnU7gMeyA/gdrSHm2xJwqNPipw2MtaZUaqQ2UG/q7pP6AQiZ8mqw==
+
+"@types/color@3.0.2":
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/@types/color/-/color-3.0.2.tgz#3779043e782f562aa9157b5fc6bd07e14fd8e7f3"
+  integrity sha512-INiJl6sfNn8iyC5paxVzqiVUEj2boIlFki02uRTAkKwAj++7aAF+ZfEv/XrIeBa0XI/fTZuDHW8rEEcEVnON+Q==
+  dependencies:
+    "@types/color-convert" "*"
+
 "@types/common-tags@1.8.2":
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/@types/common-tags/-/common-tags-1.8.2.tgz#04a2fed0597d18b6eb5eb9d24b62905041c572c9"