diff --git a/ui/src/components/task-chat/TaskChatBubble.test.tsx b/ui/src/components/task-chat/TaskChatBubble.test.tsx
index e16c4a20f9..9b3c041200 100644
--- a/ui/src/components/task-chat/TaskChatBubble.test.tsx
+++ b/ui/src/components/task-chat/TaskChatBubble.test.tsx
@@ -66,6 +66,48 @@ describe("TaskChatBubble attachment chips", () => {
   });
 });
 
+describe("TaskChatBubble accent-bubble text color", () => {
+  let container: HTMLDivElement;
+  let root: Root | null = null;
+
+  beforeEach(() => {
+    container = document.createElement("div");
+    document.body.appendChild(container);
+    root = createRoot(container);
+  });
+
+  afterEach(() => {
+    flushSync(() => root?.unmount());
+    root = null;
+    container.remove();
+  });
+
+  function render(item: TaskChatMessageItem) {
+    flushSync(() =>
+      root!.render(
+        <ThemeProvider>
+          <TaskChatBubble item={item} />
+        </ThemeProvider>,
+      ),
+    );
+  }
+
+  it("marks the human bubble's markdown as on-accent so prose text follows text-white", () => {
+    render({ id: "m1", kind: "message", author: "human", text: "when a new task is created…" });
+    const body = container.querySelector(".paperclip-markdown");
+    expect(body).not.toBeNull();
+    // Without this class the light-mode prose body color reads as black on blue.
+    expect(body?.className).toContain("paperclip-markdown-on-accent");
+  });
+
+  it("leaves the neutral agent bubble on default prose colors", () => {
+    render({ id: "m1", kind: "message", author: "agent", authorName: "CEO", text: "Final reply." });
+    const body = container.querySelector(".paperclip-markdown");
+    expect(body).not.toBeNull();
+    expect(body?.className).not.toContain("paperclip-markdown-on-accent");
+  });
+});
+
 describe("TaskChatBubble interstitial self-talk (PAP-357)", () => {
   let container: HTMLDivElement;
   let root: Root | null = null;
diff --git a/ui/src/components/task-chat/TaskChatBubble.tsx b/ui/src/components/task-chat/TaskChatBubble.tsx
index 549877d381..af8f71e3bb 100644
--- a/ui/src/components/task-chat/TaskChatBubble.tsx
+++ b/ui/src/components/task-chat/TaskChatBubble.tsx
@@ -99,7 +99,17 @@ export function TaskChatBubble({ item, attachedTurn }: TaskChatBubbleProps) {
             item.optimistic ? "opacity-80" : null,
           )}
         >
-          <MarkdownBody softBreaks linkIssueReferences>
+          <MarkdownBody
+            // The human bubble sits on the solid --liveness-blue accent, so the
+            // prose body text must follow the bubble's `text-white` rather than
+            // the default light-mode prose color (which reads as black on blue).
+            // `paperclip-markdown-on-accent` flips prose tokens to currentColor
+            // (== inherited white) in both themes; dark mode was already correct
+            // only because `prose-invert` happened to lighten the text.
+            className={isHuman ? "paperclip-markdown-on-accent" : undefined}
+            softBreaks
+            linkIssueReferences
+          >
             {bodyText}
           </MarkdownBody>
         </div>
diff --git a/ui/src/components/task-chat/TaskChatDescriptionBubble.tsx b/ui/src/components/task-chat/TaskChatDescriptionBubble.tsx
index 025d101f25..28c874ac06 100644
--- a/ui/src/components/task-chat/TaskChatDescriptionBubble.tsx
+++ b/ui/src/components/task-chat/TaskChatDescriptionBubble.tsx
@@ -148,7 +148,14 @@ export function TaskChatDescriptionBubble({ brief }: TaskChatDescriptionBubblePr
             // toggle's muted colors need a lift on the solid blue bubble.
             toggleClassName={isHuman ? "text-white/80 hover:text-white hover:bg-white/10" : undefined}
           >
-            <MarkdownBody softBreaks linkIssueReferences externalReferences={brief.externalReferences}>
+            <MarkdownBody
+              // On the solid --liveness-blue human bubble, keep prose body text
+              // following the bubble's `text-white` in both themes.
+              className={isHuman ? "paperclip-markdown-on-accent" : undefined}
+              softBreaks
+              linkIssueReferences
+              externalReferences={brief.externalReferences}
+            >
               {brief.description}
             </MarkdownBody>
           </FoldCurtain>