From 351d11dd9f1e6d05efa8de1e6587cdf56d68d732 Mon Sep 17 00:00:00 2001
From: Oliver Byford <oliver.byford@digital.cabinet-office.gov.uk>
Date: Tue, 23 Apr 2019 16:40:53 +0100
Subject: [PATCH] Link colour palette to compatibility mode

---
 src/helpers/_colour.scss           | 1 +
 src/settings/_colours-palette.scss | 6 +++++-
 src/settings/colours.test.js       | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/helpers/_colour.scss b/src/helpers/_colour.scss
index 2fc311e73c..b6f9ae708e 100644
--- a/src/helpers/_colour.scss
+++ b/src/helpers/_colour.scss
@@ -1,3 +1,4 @@
+@import "../settings/compatibility";
 @import "../settings/colours-palette";
 @import "../settings/colours-organisations";
 
diff --git a/src/settings/_colours-palette.scss b/src/settings/_colours-palette.scss
index c7b6c03ec0..4e16625147 100644
--- a/src/settings/_colours-palette.scss
+++ b/src/settings/_colours-palette.scss
@@ -11,7 +11,11 @@
 /// @type Boolean
 /// @access public
 
-$govuk-use-legacy-palette: true !default;
+$govuk-use-legacy-palette: if((
+    $govuk-compatibility-govukfrontendtoolkit or
+    $govuk-compatibility-govuktemplate or
+    $govuk-compatibility-govukelements
+  ), true, false) !default;
 
 /// Legacy colour palette
 ///
diff --git a/src/settings/colours.test.js b/src/settings/colours.test.js
index 15efd83f34..7c6f9ffa9f 100644
--- a/src/settings/colours.test.js
+++ b/src/settings/colours.test.js
@@ -15,6 +15,7 @@ const sassConfig = {
 describe('Organisation colours', () => {
   it('should define websafe colours that meet contrast requirements', async () => {
     const sass = `
+      @import "settings/compatibility";
       @import "settings/colours-palette";
       @import "settings/colours-organisations";
       @import "settings/colours-applied";