1 files changed, 34 insertions, 8 deletions
diff --git a/site/content/docs/5.2/utilities/background.md b/site/content/docs/5.3/utilities/background.md
index fe0bf57..c17ed84 100644
--- a/site/content/docs/5.2/utilities/background.md
+++ b/site/content/docs/5.3/utilities/background.md
@@ -6,19 +6,32 @@ group: utilities
 toc: true
 ---
 
+{{< callout info >}}
+{{< partial "callouts/warning-color-assistive-technologies.md" >}}
+{{< /callout >}}
+
 ## Background color
 
 Similar to the contextual text color classes, set the background of an element to any contextual class. Background utilities **do not set `color`**, so in some cases you'll want to use `.text-*` [color utilities]({{< docsref "/utilities/colors" >}}).
 
+{{< callout info >}}
+Background utilities like `.bg-*` that generated from our original `$theme-colors` Sass map don't yet respond to color modes, however, any `.bg-*-subtle` utility will. This will be resolved in v6.
+{{< /callout >}}
+
 {{< example >}}
 {{< colors.inline >}}
 {{- range (index $.Site.Data "theme-colors") }}
 <div class="p-3 mb-2 bg-{{ .name }}{{ if .contrast_color }} text-{{ .contrast_color }}{{ else }} text-white{{ end }}">.bg-{{ .name }}</div>
+<div class="p-3 mb-2 bg-{{ .name }}-subtle text-emphasis-{{ .name }}">.bg-{{ .name }}-subtle</div>
 {{- end -}}
 {{< /colors.inline >}}
-<div class="p-3 mb-2 bg-body text-dark">.bg-body</div>
+<p class="p-3 mb-2 bg-body-secondary">.bg-body-secondary</p>
+<p class="p-3 mb-2 bg-body-tertiary">.bg-body-tertiary</p>
+
+<div class="p-3 mb-2 bg-body text-body">.bg-body</div>
+<div class="p-3 mb-2 bg-black text-white">.bg-black</div>
 <div class="p-3 mb-2 bg-white text-dark">.bg-white</div>
-<div class="p-3 mb-2 bg-transparent text-dark">.bg-transparent</div>
+<div class="p-3 mb-2 bg-transparent text-body">.bg-transparent</div>
 {{< /example >}}
 
 ## Background gradient
@@ -33,6 +46,7 @@ Do you need a gradient in your custom CSS? Just add `background-image: var(--bs-
 <div class="p-3 mb-2 bg-{{ .name }} bg-gradient{{ with .contrast_color }} text-{{ . }}{{ else }} text-white{{ end }}">.bg-{{ .name }}.bg-gradient</div>
 {{- end -}}
 {{< /colors.inline >}}
+<div class="p-3 mb-2 bg-black bg-gradient text-white">.bg-black.bg-gradient</div>
 {{< /markdown >}}
 
 ## Opacity
@@ -73,11 +87,11 @@ Or, choose from any of the `.bg-opacity` utilities:
 <div class="bg-success p-2 text-dark bg-opacity-10">This is 10% opacity success background</div>
 {{< /example >}}
 
-## Sass
+## CSS
 
 In addition to the following Sass functionality, consider reading about our included [CSS custom properties]({{< docsref "/customize/css-variables" >}}) (aka CSS variables) for colors and more.
 
-### Variables
+### Sass variables
 
 Most `background-color` utilities are generated by our theme colors, reassigned from our generic color palette variables.
 
@@ -91,7 +105,13 @@ Grayscale colors are also available, but only a subset are used to generate any
 
 {{< scss-docs name="gray-color-variables" file="scss/_variables.scss" >}}
 
-### Map
+Variables for setting `background-color` in `.bg-*-subtle` utilities in light and dark mode:
+
+{{< scss-docs name="theme-bg-subtle-variables" file="scss/_variables.scss" >}}
+
+{{< scss-docs name="theme-bg-subtle-dark-variables" file="scss/_variables-dark.scss" >}}
+
+### Sass maps
 
 Theme colors are then put into a Sass map so we can loop over them to generate our utilities, component modifiers, and more.
 
@@ -105,11 +125,17 @@ RGB colors are generated from a separate Sass map:
 
 {{< scss-docs name="theme-colors-rgb" file="scss/_maps.scss" >}}
 
-And background color opacities build on that with their own map that's consumed by the utilities API:
+Background color opacities build on that with their own map that's consumed by the utilities API:
 
 {{< scss-docs name="utilities-bg-colors" file="scss/_maps.scss" >}}
 
-### Mixins
+Color mode background colors are also available as a Sass map:
+
+{{< scss-docs name="theme-bg-subtle-map" file="scss/_maps.scss" >}}
+
+{{< scss-docs name="theme-bg-subtle-dark-map" file="scss/_maps.scss" >}}
+
+### Sass mixins
 
 **No mixins are used to generate our background utilities**, but we do have some additional mixins for other situations where you'd like to create your own gradients.
 
@@ -117,7 +143,7 @@ And background color opacities build on that with their own map that's consumed
 
 {{< scss-docs name="gradient-mixins" file="scss/mixins/_gradients.scss" >}}
 
-### Utilities API
+### Sass utilities API
 
 Background utilities are declared in our utilities API in `scss/_utilities.scss`. [Learn how to use the utilities API.]({{< docsref "/utilities/api#using-the-api" >}})