diff --git a/changelog/unreleased/fix-web-theme-color-contrasts.md b/changelog/unreleased/fix-web-theme-color-contrasts.md
new file mode 100644
index 0000000000..f0ad1ff0e7
--- /dev/null
+++ b/changelog/unreleased/fix-web-theme-color-contrasts.md
@@ -0,0 +1,7 @@
+Bugfix: Web theme color contrasts
+
+Web theme colors have been enhanced so they have at least a 4.5:1 contrast ratio because of a11y reasons.
+
+https://github.com/owncloud/web/issues/10726
+https://github.com/owncloud/web/pull/11331
+https://github.com/owncloud/ocis/pull/9752
diff --git a/services/web/assets/themes/owncloud/theme.json b/services/web/assets/themes/owncloud/theme.json
index 80383368de..21651d4870 100644
--- a/services/web/assets/themes/owncloud/theme.json
+++ b/services/web/assets/themes/owncloud/theme.json
@@ -135,7 +135,7 @@
               "background-default": "#292929",
               "background-highlight": "#383838",
               "background-muted": "#383838",
-              "background-secondary": "#4f4f4f",
+              "background-secondary": "#404040",
               "background-hover": "#383838",
               "color-components-apptopbar-background": "transparent",
               "color-components-apptopbar-border": "#ceddee",
@@ -163,7 +163,7 @@
               "swatch-primary-gradient-hover": "#76a1d5",
               "swatch-primary-contrast": "#dadcdf",
               "swatch-success-background": "rgba(0, 188, 140, 0)",
-              "swatch-success-default": "rgb(0, 188, 140)",
+              "swatch-success-default": "rgb(0, 200, 152)",
               "swatch-success-hover": "#00f0b4",
               "swatch-success-muted": "rgba(0, 188, 140, .5)",
               "swatch-success-contrast": "#000000",
@@ -171,10 +171,10 @@
               "swatch-warning-default": "rgb(232, 191, 73)",
               "swatch-warning-hover": "#eed077",
               "swatch-warning-muted": "rgba(232, 178, 19, .5)",
-              "swatch-danger-default": "rgb(255, 72, 53)",
+              "swatch-danger-default": "rgb(255, 137, 126)",
               "swatch-danger-hover": "#ff7566",
               "swatch-danger-muted": "rgba(255, 72, 53, .5)",
-              "swatch-danger-contrast": "#dadcdf",
+              "swatch-danger-contrast": "#000000",
               "swatch-warning-contrast": "#000000",
               "text-default": "#dadcdf",
               "text-inverse": "#000000",