diff --git a/ui/src/components/IssueChatThread.test.tsx b/ui/src/components/IssueChatThread.test.tsx
index 8be26a9f74..2625ecaa49 100644
--- a/ui/src/components/IssueChatThread.test.tsx
+++ b/ui/src/components/IssueChatThread.test.tsx
@@ -90,9 +90,9 @@ vi.mock("../lib/issue-chat-scroll", async (importOriginal) => {
 });
 
 vi.mock("./MarkdownBody", () => ({
-  MarkdownBody: ({ children }: { children: ReactNode }) => {
-    markdownBodyRenderMock(children);
-    return <div>{children}</div>;
+  MarkdownBody: ({ children, className }: { children: ReactNode; className?: string }) => {
+    markdownBodyRenderMock({ children, className });
+    return <div className={className}>{children}</div>;
   },
 }));
 
@@ -354,6 +354,48 @@ describe("IssueChatThread", () => {
     });
   });
 
+  it("uses accent-safe markdown color in the current user's blue message bubble", () => {
+    const root = createRoot(container);
+
+    act(() => {
+      root.render(
+        <MemoryRouter>
+          <IssueChatThread
+            comments={[{
+              id: "comment-current-user",
+              companyId: "company-1",
+              issueId: "issue-1",
+              authorAgentId: null,
+              authorUserId: "user-board",
+              authorType: "user",
+              body: "1. **Readable** markdown on blue",
+              presentation: null,
+              metadata: null,
+              createdAt: new Date("2026-04-06T12:00:00.000Z"),
+              updatedAt: new Date("2026-04-06T12:00:00.000Z"),
+            }]}
+            linkedRuns={[]}
+            timelineEvents={[]}
+            liveRuns={[]}
+            currentUserId="user-board"
+            onAdd={async () => {}}
+            showComposer={false}
+            enableLiveTranscriptPolling={false}
+          />
+        </MemoryRouter>,
+      );
+    });
+
+    expect(markdownBodyRenderMock).toHaveBeenCalledWith(expect.objectContaining({
+      children: "1. **Readable** markdown on blue",
+      className: expect.stringContaining("paperclip-markdown-on-accent"),
+    }));
+
+    act(() => {
+      root.unmount();
+    });
+  });
+
   it("labels operator-interrupted cancelled runs as interrupted while preserving plain cancelled runs", () => {
     const root = createRoot(container);
     const linkedRuns: IssueChatLinkedRun[] = [
diff --git a/ui/src/components/IssueChatThread.tsx b/ui/src/components/IssueChatThread.tsx
index ec3534f4c0..3aafbf53be 100644
--- a/ui/src/components/IssueChatThread.tsx
+++ b/ui/src/components/IssueChatThread.tsx
@@ -721,9 +721,7 @@ const IssueChatTextPart = memo(function IssueChatTextPart({ text, recessed, onAc
   }
   return (
     <WorkspaceFileMarkdownBody
-      // `prose-invert` flips typography colours (body, links, code) to light so
-      // markdown stays legible on the saturated liveness-blue human bubble.
-      className={cn("text-sm leading-6", onAccent && "prose-invert")}
+      className={cn("text-sm leading-6", onAccent && "paperclip-markdown-on-accent")}
       style={recessed ? { opacity: 0.55 } : undefined}
       softBreaks
       onImageClick={onImageClick}
diff --git a/ui/src/components/MarkdownAccentStyles.test.ts b/ui/src/components/MarkdownAccentStyles.test.ts
new file mode 100644
index 0000000000..ee7251e50a
--- /dev/null
+++ b/ui/src/components/MarkdownAccentStyles.test.ts
@@ -0,0 +1,47 @@
+import { readFileSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+import { describe, expect, it } from "vitest";
+
+const stylesheet = readFileSync(fileURLToPath(new URL("../index.css", import.meta.url)), "utf8");
+
+function cssBlock(selector: string): string {
+  const start = stylesheet.indexOf(`${selector} {`);
+  expect(start, `Missing CSS selector: ${selector}`).toBeGreaterThanOrEqual(0);
+
+  const bodyStart = stylesheet.indexOf("{", start);
+  const bodyEnd = stylesheet.indexOf("\n}", bodyStart);
+  expect(bodyStart, `Missing CSS block start: ${selector}`).toBeGreaterThanOrEqual(0);
+  expect(bodyEnd, `Missing CSS block end: ${selector}`).toBeGreaterThan(bodyStart);
+
+  return stylesheet.slice(bodyStart + 1, bodyEnd);
+}
+
+describe("accent markdown styles", () => {
+  it("inherits the current message bubble foreground for prose text, links, and list counters", () => {
+    const block = cssBlock(".paperclip-markdown.paperclip-markdown-on-accent");
+
+    expect(block).toContain("color: inherit");
+    expect(block).toContain("--tw-prose-body: currentColor");
+    expect(block).toContain("--tw-prose-links: currentColor");
+    expect(block).toContain("--tw-prose-counters: currentColor");
+    expect(block).toContain("--tw-prose-bullets: currentColor");
+    expect(block).toContain("--tw-prose-invert-links: currentColor");
+  });
+
+  it("keeps ordered-list markers and rendered link variants readable on accent bubbles", () => {
+    expect(cssBlock(".paperclip-markdown.paperclip-markdown-on-accent li::marker")).toContain(
+      "color: currentColor",
+    );
+    expect(cssBlock(".paperclip-markdown.paperclip-markdown-on-accent :where(a, a:visited)")).toContain(
+      "color: currentColor",
+    );
+    expect(cssBlock(".paperclip-markdown.paperclip-markdown-on-accent .paperclip-workspace-file-link")).toContain(
+      "color: currentColor",
+    );
+    expect(
+      cssBlock(
+        ".paperclip-markdown.paperclip-markdown-on-accent :where(a.paperclip-mention-chip, a.paperclip-project-mention-chip)",
+      ),
+    ).toContain("color: currentColor !important");
+  });
+});
diff --git a/ui/src/index.css b/ui/src/index.css
index d749022899..f86dd53ba9 100644
--- a/ui/src/index.css
+++ b/ui/src/index.css
@@ -1042,12 +1042,49 @@ a.paperclip-mention-chip[data-mention-kind="agent"]::before {
   background-color: #ffffff0f;
 }
 
+.paperclip-markdown.paperclip-markdown-on-accent :not(pre) > code {
+  background-color: color-mix(in oklab, currentColor 24%, transparent);
+  color: currentColor;
+}
+
 .paperclip-markdown {
   color: var(--foreground);
   font-size: 0.9375rem;
   line-height: 1.6;
 }
 
+.paperclip-markdown.paperclip-markdown-on-accent {
+  color: inherit;
+  --tw-prose-body: currentColor;
+  --tw-prose-headings: currentColor;
+  --tw-prose-lead: currentColor;
+  --tw-prose-links: currentColor;
+  --tw-prose-bold: currentColor;
+  --tw-prose-counters: currentColor;
+  --tw-prose-bullets: currentColor;
+  --tw-prose-hr: color-mix(in oklab, currentColor 24%, transparent);
+  --tw-prose-quotes: currentColor;
+  --tw-prose-quote-borders: color-mix(in oklab, currentColor 56%, transparent);
+  --tw-prose-captions: color-mix(in oklab, currentColor 84%, transparent);
+  --tw-prose-code: currentColor;
+  --tw-prose-th-borders: color-mix(in oklab, currentColor 34%, transparent);
+  --tw-prose-td-borders: color-mix(in oklab, currentColor 22%, transparent);
+  --tw-prose-invert-body: currentColor;
+  --tw-prose-invert-headings: currentColor;
+  --tw-prose-invert-lead: currentColor;
+  --tw-prose-invert-links: currentColor;
+  --tw-prose-invert-bold: currentColor;
+  --tw-prose-invert-counters: currentColor;
+  --tw-prose-invert-bullets: currentColor;
+  --tw-prose-invert-hr: color-mix(in oklab, currentColor 24%, transparent);
+  --tw-prose-invert-quotes: currentColor;
+  --tw-prose-invert-quote-borders: color-mix(in oklab, currentColor 56%, transparent);
+  --tw-prose-invert-captions: color-mix(in oklab, currentColor 84%, transparent);
+  --tw-prose-invert-code: currentColor;
+  --tw-prose-invert-th-borders: color-mix(in oklab, currentColor 34%, transparent);
+  --tw-prose-invert-td-borders: color-mix(in oklab, currentColor 22%, transparent);
+}
+
 .paperclip-markdown > :first-child {
   margin-top: 0;
 }
@@ -1087,6 +1124,10 @@ a.paperclip-mention-chip[data-mention-kind="agent"]::before {
   color: var(--muted-foreground);
 }
 
+.paperclip-markdown.paperclip-markdown-on-accent li::marker {
+  color: currentColor;
+}
+
 .paperclip-markdown h1,
 .paperclip-markdown h2,
 .paperclip-markdown h3,
@@ -1115,6 +1156,10 @@ a.paperclip-mention-chip[data-mention-kind="agent"]::before {
   font-size: 0.95rem;
 }
 
+.paperclip-markdown.paperclip-markdown-on-accent :where(h1, h2, h3, h4, strong, b) {
+  color: currentColor;
+}
+
 .paperclip-markdown :where(strong, b) {
   color: var(--foreground);
   font-weight: 600;
@@ -1127,6 +1172,16 @@ a.paperclip-mention-chip[data-mention-kind="agent"]::before {
   cursor: pointer;
 }
 
+.paperclip-markdown.paperclip-markdown-on-accent :where(a, a:visited) {
+  color: currentColor;
+  text-decoration-color: color-mix(in oklab, currentColor 72%, transparent);
+}
+
+.paperclip-markdown.paperclip-markdown-on-accent :where(a:hover, a:focus-visible) {
+  color: currentColor;
+  text-decoration-color: currentColor;
+}
+
 .paperclip-markdown a.paperclip-mention-chip {
   text-decoration: none;
 }
@@ -1154,6 +1209,10 @@ a.paperclip-mention-chip[data-mention-kind="agent"]::before {
   color: color-mix(in oklab, var(--foreground) 80%, #58a6ff 20%);
 }
 
+.dark .paperclip-markdown.paperclip-markdown-on-accent :where(a, a:visited) {
+  color: currentColor;
+}
+
 .paperclip-markdown blockquote {
   margin-left: 0;
   padding-left: 0.95rem;
@@ -1161,6 +1220,27 @@ a.paperclip-mention-chip[data-mention-kind="agent"]::before {
   color: var(--muted-foreground);
 }
 
+.paperclip-markdown.paperclip-markdown-on-accent blockquote {
+  border-left-color: color-mix(in oklab, currentColor 56%, transparent);
+  color: color-mix(in oklab, currentColor 88%, transparent);
+}
+
+.paperclip-markdown.paperclip-markdown-on-accent .paperclip-workspace-file-link {
+  border-color: color-mix(in oklab, currentColor 34%, transparent);
+  background-color: color-mix(in oklab, currentColor 16%, transparent);
+  color: currentColor;
+}
+
+.paperclip-markdown.paperclip-markdown-on-accent .paperclip-workspace-file-link:hover {
+  background-color: color-mix(in oklab, currentColor 24%, transparent);
+}
+
+.paperclip-markdown.paperclip-markdown-on-accent :where(a.paperclip-mention-chip, a.paperclip-project-mention-chip) {
+  border-color: color-mix(in oklab, currentColor 34%, transparent) !important;
+  background: color-mix(in oklab, currentColor 16%, transparent) !important;
+  color: currentColor !important;
+}
+
 .paperclip-markdown hr {
   margin: 1.25rem 0;
   border-color: var(--border);