diff --git a/src/cli/proxy-cli.runtime.test.ts b/src/cli/proxy-cli.runtime.test.ts
index f38cee36762..e1784420b83 100644
--- a/src/cli/proxy-cli.runtime.test.ts
+++ b/src/cli/proxy-cli.runtime.test.ts
@@ -43,6 +43,8 @@ describe("proxy cli runtime", () => {
     "OPENCLAW_DEBUG_PROXY_CERT_DIR",
     "OPENCLAW_DEBUG_PROXY_SESSION_ID",
     "OPENCLAW_DEBUG_PROXY_ENABLED",
+    "FORCE_COLOR",
+    "NO_COLOR",
   ] as const;
   const savedEnv = Object.fromEntries(envKeys.map((key) => [key, process.env[key]]));
   let tempDir = "";
@@ -54,6 +56,8 @@ describe("proxy cli runtime", () => {
     process.env.OPENCLAW_DEBUG_PROXY_CERT_DIR = path.join(tempDir, "certs");
     delete process.env.OPENCLAW_DEBUG_PROXY_ENABLED;
     delete process.env.OPENCLAW_DEBUG_PROXY_SESSION_ID;
+    delete process.env.FORCE_COLOR;
+    process.env.NO_COLOR = "1";
     getRuntimeConfigMock.mockReset();
     getRuntimeConfigMock.mockReturnValue({
       proxy: {
@@ -311,6 +315,66 @@ describe("proxy cli runtime", () => {
     );
   });
 
+  it("prints check errors on the same line", async () => {
+    runProxyValidationMock.mockResolvedValueOnce({
+      ok: true,
+      config: {
+        enabled: true,
+        proxyUrl: "http://proxy.example:3128",
+        source: "config",
+        errors: [],
+      },
+      checks: [
+        {
+          kind: "denied",
+          url: "http://127.0.0.1:12345/",
+          ok: true,
+          error: "fetch failed",
+        },
+      ],
+    });
+    const { runProxyValidateCommand } = await import("./proxy-cli.runtime.js");
+
+    await runProxyValidateCommand({});
+
+    expect(process.stdout.write).toHaveBeenCalledWith(
+      "Proxy validation passed\n\n" +
+        "Proxy\n" +
+        "  Source: config\n" +
+        "  URL:    http://proxy.example:3128/\n\n" +
+        "Checks\n" +
+        "  ✓ denied  http://127.0.0.1:12345/ — fetch failed\n",
+    );
+  });
+
+  it("applies the terminal color theme when rich output is enabled", async () => {
+    vi.resetModules();
+    vi.doMock("../terminal/theme.js", () => ({
+      colorize: (rich: boolean, color: (value: string) => string, value: string) =>
+        rich ? color(value) : value,
+      isRich: () => true,
+      theme: {
+        heading: (value: string) => `<heading>${value}</heading>`,
+        success: (value: string) => `<success>${value}</success>`,
+        error: (value: string) => `<error>${value}</error>`,
+        muted: (value: string) => `<muted>${value}</muted>`,
+        warn: (value: string) => `<warn>${value}</warn>`,
+      },
+    }));
+    try {
+      const { runProxyValidateCommand } = await import("./proxy-cli.runtime.js");
+
+      await runProxyValidateCommand({});
+
+      const output = String(vi.mocked(process.stdout.write).mock.calls[0]?.[0] ?? "");
+      expect(output).toContain("<success>Proxy validation passed</success>");
+      expect(output).toContain("<heading>Checks</heading>");
+      expect(output).toContain("<success>✓</success>");
+    } finally {
+      vi.doUnmock("../terminal/theme.js");
+    }
+  });
+
   it("prints actionable check failure output", async () => {
     runProxyValidationMock.mockResolvedValueOnce({
       ok: false,
@@ -347,8 +411,7 @@ describe("proxy cli runtime", () => {
         "  URL:    http://proxy.example:3128/\n\n" +
         "Checks\n" +
         "  ✓ allowed http://target.example/allowed HTTP 200\n" +
-        "  ✗ denied  http://target.example/allowed HTTP 200\n" +
-        "    Denied destination was reachable through the proxy\n\n" +
+        "  ✗ denied  http://target.example/allowed HTTP 200 — Denied destination was reachable through the proxy\n\n" +
         "Next steps\n" +
         "  Update the proxy ACL so denied destinations are blocked, or pass the expected --denied-url values.\n",
     );
diff --git a/src/cli/proxy-cli.runtime.ts b/src/cli/proxy-cli.runtime.ts
index c3ded290d08..a7299385d08 100644
--- a/src/cli/proxy-cli.runtime.ts
+++ b/src/cli/proxy-cli.runtime.ts
@@ -19,6 +19,7 @@ import {
   getDebugProxyCaptureStore,
 } from "../proxy-capture/store.sqlite.js";
 import type { CaptureQueryPreset } from "../proxy-capture/types.js";
+import { colorize, isRich, theme } from "../terminal/theme.js";
 
 export async function runDebugProxyStartCommand(opts: { host?: string; port?: number }) {
   const settings = resolveDebugProxySettings();
@@ -148,11 +149,41 @@ function redactProxyValidationResult(result: ProxyValidationResult): ProxyValida
   };
 }
 
-function formatProxyCheckLine(check: ProxyValidationResult["checks"][number]): string {
-  const icon = check.ok ? "✓" : "✗";
-  const paddedKind = check.kind.padEnd(7, " ");
-  const status = check.status === undefined ? "" : ` HTTP ${check.status}`;
-  return `  ${icon} ${paddedKind} ${check.url}${status}`;
+type ProxyValidationTextColors = {
+  heading: (value: string) => string;
+  success: (value: string) => string;
+  error: (value: string) => string;
+  muted: (value: string) => string;
+  warn: (value: string) => string;
+};
+
+function getProxyValidationTextColors(): ProxyValidationTextColors {
+  const rich = isRich();
+  const apply = (color: (value: string) => string) => (value: string) =>
+    colorize(rich, color, value);
+  return {
+    heading: apply(theme.heading),
+    success: apply(theme.success),
+    error: apply(theme.error),
+    muted: apply(theme.muted),
+    warn: apply(theme.warn),
+  };
+}
+
+function formatProxyCheckLine(
+  check: ProxyValidationResult["checks"][number],
+  colors: ProxyValidationTextColors,
+): string {
+  const icon = check.ok ? colors.success("✓") : colors.error("✗");
+  const paddedKind = colors.muted(check.kind.padEnd(7, " "));
+  const status =
+    check.status === undefined
+      ? ""
+      : ` ${check.ok ? colors.success(`HTTP ${check.status}`) : colors.error(`HTTP ${check.status}`)}`;
+  const detail = check.error
+    ? ` — ${check.ok ? colors.muted(check.error) : colors.error(check.error)}`
+    : "";
+  return `  ${icon} ${paddedKind} ${check.url}${status}${detail}`;
 }
 
 function formatProxyValidationNextSteps(result: ProxyValidationResult): string[] {
@@ -185,37 +216,35 @@ function formatProxyValidationNextSteps(result: ProxyValidationResult): string[]
 }
 
 function formatProxyValidationText(result: ProxyValidationResult): string {
+  const colors = getProxyValidationTextColors();
   const redactedProxyUrl = redactProxyUrl(result.config.proxyUrl);
   const lines = [
-    `Proxy validation ${result.ok ? "passed" : "failed"}`,
+    result.ok ? colors.success("Proxy validation passed") : colors.error("Proxy validation failed"),
     "",
-    "Proxy",
-    `  Source: ${result.config.source}`,
-    `  URL:    ${redactedProxyUrl ?? "not configured"}`,
+    colors.heading("Proxy"),
+    `  Source: ${colors.muted(result.config.source)}`,
+    `  URL:    ${redactedProxyUrl ?? colors.muted("not configured")}`,
   ];
 
   if (result.config.errors.length > 0) {
-    lines.push("", "Problems");
+    lines.push("", colors.heading("Problems"));
     for (const error of result.config.errors) {
-      lines.push(`  - ${error}`);
+      lines.push(`  - ${colors.error(error)}`);
     }
   }
 
   if (result.checks.length > 0) {
-    lines.push("", "Checks");
+    lines.push("", colors.heading("Checks"));
     for (const check of result.checks) {
-      lines.push(formatProxyCheckLine(check));
-      if (check.error) {
-        lines.push(`    ${check.error}`);
-      }
+      lines.push(formatProxyCheckLine(check, colors));
     }
   }
 
   const nextSteps = formatProxyValidationNextSteps(result);
   if (nextSteps.length > 0) {
-    lines.push("", "Next steps");
+    lines.push("", colors.heading("Next steps"));
     for (const nextStep of nextSteps) {
-      lines.push(`  ${nextStep}`);
+      lines.push(`  ${colors.warn(nextStep)}`);
     }
   }