diff --git a/assets/sass/_colors.scss b/assets/sass/_colors.scss
index 6e71cb1..d1b0635 100644
--- a/assets/sass/_colors.scss
+++ b/assets/sass/_colors.scss
@@ -50,6 +50,13 @@
   --color-link-hover-inverted:    var(--color-white);
   --color-link-active-inverted:   var(--color-red);
 
+  // Button colours.
+  --color-button:                 var(--color-brand);
+  --color-button-hover:           var(--color-brand-alt);
+  --color-button-text:            var(--color-white);
+  --color-button-text-hover:      var(--color-white);
+  --color-button-disabled:        var(--color-grey-400);
+
   // Border colours.
   --color-border:                 var(--color-brand);
   --color-border-light:           var(--color-brand-light);
@@ -65,12 +72,8 @@
   --color-mobile-menu:            var(--color-brand);
   --color-mobile-menu-cover:      var(--color-black-20);
 
-  // Button colours.
-  --color-button:                 var(--color-brand);
-  --color-button-hover:           var(--color-brand-dark);
-  --color-button-text:            var(--color-white);
-  --color-button-text-hover:      var(--color-white);
-  --color-button-disabled:        var(--color-grey-400);
+  // Form colours.
+  --color-accent:                 var(--color-brand);
 
   // Row (e.g. in table) colours.
   --color-row-header:             transparent;
@@ -80,8 +83,8 @@
   // Status colours.
   --color-info:                   var(--color-blue);
   --color-info-bg:                oklch(from var(--color-blue) 100% 0.03 h);
-  --color-status:                 var(--color-green);
-  --color-status-bg:              oklch(from var(--color-green) 100% 0.03 h);
+  --color-success:                 var(--color-green);
+  --color-success-bg:              oklch(from var(--color-green) 100% 0.03 h);
   --color-warning:                var(--color-yellow);
   --color-warning-bg:             oklch(from var(--color-yellow) 100% 0.03 h);
   --color-error:                  var(--color-red);
diff --git a/assets/sass/base/document/_document.scss b/assets/sass/base/document/_document.scss
index 5a00fe3..6645dae 100644
--- a/assets/sass/base/document/_document.scss
+++ b/assets/sass/base/document/_document.scss
@@ -12,6 +12,8 @@ html {
 body {
   // Correct the line height in all browsers.
   line-height: var(--base-line-height);
+  // Accent colour for forms.
+  accent-color: var(--color-accent);
   // Output a horizontal grid to help with debugging typography. The
   // $debug variable will toggle its output.
   @include debug-grid();
diff --git a/assets/sass/components/cookieconsent/_cookieconsent.scss b/assets/sass/components/cookieconsent/_cookieconsent.scss
index 36b55a5..327b44f 100644
--- a/assets/sass/components/cookieconsent/_cookieconsent.scss
+++ b/assets/sass/components/cookieconsent/_cookieconsent.scss
@@ -20,7 +20,7 @@
 
 .button {
   &--accept {
-    border-color: var(--color-status);
+    border-color: var(--color-success);
   }
 
   &--decline {
diff --git a/assets/sass/components/flex-inline/_flex-inline.scss b/assets/sass/components/flex-inline/_flex-inline.scss
index f1d55ec..1ffe4e6 100644
--- a/assets/sass/components/flex-inline/_flex-inline.scss
+++ b/assets/sass/components/flex-inline/_flex-inline.scss
@@ -1,10 +1,10 @@
 .flex-inline,
 %flex-inline {
-  --gap: .5rem;
+  --flex-inline-gap: .5rem;
 
   display: flex;
   flex-wrap: wrap;
-  gap: var(--gap);
+  gap: var(--flex-inline-gap);
   padding: 0;
   text-align: start;
 
diff --git a/assets/sass/components/grid-group/_grid-group.scss b/assets/sass/components/grid-group/_grid-group.scss
index 9c41f38..e35c1ef 100644
--- a/assets/sass/components/grid-group/_grid-group.scss
+++ b/assets/sass/components/grid-group/_grid-group.scss
@@ -1,52 +1,52 @@
 .grid-group,
 %grid-group {
-  --column-min: 200px;
-  --gap: 1.5rem;
+  --grid-group-column-min: 200px;
+  --grid-group-gap: 1.5rem;
 
   display: grid;
-  gap: var(--gap);
+  gap: var(--grid-group-gap);
   // Writing "Min" instead of "min" to force use of css "min()" instead of sass "min()".
   // stylelint-disable-next-line function-name-case
-  grid-template-columns: repeat(auto-fit, minmax(Min(var(--column-min), 100%), 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(Min(var(--grid-group-column-min), 100%), 1fr));
 
   &--fill {
     // stylelint-disable-next-line function-name-case
-    grid-template-columns: repeat(auto-fill, minmax(Min(var(--column-min), 100%), 1fr));
+    grid-template-columns: repeat(auto-fill, minmax(Min(var(--grid-group-column-min), 100%), 1fr));
   }
 
   &--100 {
-    --column-min: 100px;
+    --grid-group-column-min: 100px;
   }
 
   &--150 {
-    --column-min: 150px;
+    --grid-group-column-min: 150px;
   }
 
   &--200 {
-    --column-min: 200px;
+    --grid-group-column-min: 200px;
   }
 
   &--250 {
-    --column-min: 250px;
+    --grid-group-column-min: 250px;
   }
 
   &--300 {
-    --column-min: 300px;
+    --grid-group-column-min: 300px;
   }
 
   &--350 {
-    --column-min: 350px;
+    --grid-group-column-min: 350px;
   }
 
   &--400 {
-    --column-min: 400px;
+    --grid-group-column-min: 400px;
   }
 
   &--500 {
-    --column-min: 500px;
+    --grid-group-column-min: 500px;
   }
 
   &--600 {
-    --column-min: 600px;
+    --grid-group-column-min: 600px;
   }
 }
diff --git a/assets/sass/components/messages/_messages.scss b/assets/sass/components/messages/_messages.scss
index 158bbb3..5dd0f45 100644
--- a/assets/sass/components/messages/_messages.scss
+++ b/assets/sass/components/messages/_messages.scss
@@ -7,10 +7,10 @@
   outline-style: solid;
   width: 95%;
 
-  &.status {
-    background-color: var(--color-status-bg);
-    color: var(--color-status);
-    outline-color: var(--color-status);
+  &.success {
+    background-color: var(--color-success-bg);
+    color: var(--color-success);
+    outline-color: var(--color-success);
   }
 
   &.info {
diff --git a/assets/sass/components/tables/_tables.scss b/assets/sass/components/tables/_tables.scss
index 4b315f1..b22da30 100644
--- a/assets/sass/components/tables/_tables.scss
+++ b/assets/sass/components/tables/_tables.scss
@@ -1,14 +1,14 @@
 .zebra-table,
 %zebra-table {
-  --cell-padding: .5rem;
+  --table-cell-padding: .5rem;
 
   @include respond-to-max(s) {
-    --cell-padding: .3rem;
+    --table-cell-padding: .3rem;
   }
 
   th,
   td {
-    padding: var(--cell-padding);
+    padding: var(--table-cell-padding);
   }
 
   thead {
@@ -32,7 +32,7 @@
 
 .responsive-table,
 %responsive-table {
-  --gap: .5rem;
+  --table-gap: .5rem;
 
   @include respond-to-max(s) {
     th {
@@ -41,7 +41,7 @@
 
     td {
       display: grid;
-      gap: var(--gap);
+      gap: var(--table-gap);
       grid-template-columns: 12ch auto;
 
       &::before {
@@ -50,11 +50,11 @@
       }
 
       &:first-of-type {
-        padding-block-start: var(--gap);
+        padding-block-start: var(--table-gap);
       }
 
       &:last-of-type {
-        padding-block-end: var(--gap);
+        padding-block-end: var(--table-gap);
       }
     }
   }