diff --git a/src/BrefCloudClient.php b/src/BrefCloudClient.php
index 6ac0c6e..7fab979 100644
--- a/src/BrefCloudClient.php
+++ b/src/BrefCloudClient.php
@@ -305,15 +305,17 @@ public function removeEnvironment(int $environmentId): void
     }
 
     /**
+     * @param bool $ansi Ask for colors: Bref Cloud adds `--ansi` to the command when the application's console supports it.
      * @throws HttpExceptionInterface
      * @throws ExceptionInterface
      */
-    public function startCommand(int $environmentId, string $command): int
+    public function startCommand(int $environmentId, string $command, bool $ansi = false): int
     {
         return $this->client->request('POST', '/api/v1/commands/start', [
             'json' => [
                 'environmentId' => $environmentId,
                 'command' => $command,
+                'ansi' => $ansi,
             ],
         ])->toArray()['id'];
     }
diff --git a/src/Commands/Command.php b/src/Commands/Command.php
index 0b0a29e..8affa2c 100644
--- a/src/Commands/Command.php
+++ b/src/Commands/Command.php
@@ -13,6 +13,12 @@
 
 class Command extends ApplicationCommand
 {
+    public function __construct(
+        private readonly ?BrefCloudClient $brefCloud = null,
+    ) {
+        parent::__construct();
+    }
+
     protected function configure(): void
     {
         $this
@@ -35,9 +41,10 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 
         IO::spin('starting command');
 
-        $brefCloud = new BrefCloudClient;
+        $brefCloud = $this->brefCloud ?? new BrefCloudClient;
         $environment = $brefCloud->findEnvironment($team, $appName, $environmentName);
-        $id = $brefCloud->startCommand($environment['id'], $command);
+        // Colors when the output is a terminal that shows them, the command's output is printed as is
+        $id = $brefCloud->startCommand($environment['id'], $command, $output->isDecorated());
 
         IO::spin('running');
 
diff --git a/tests/Commands/CommandTest.php b/tests/Commands/CommandTest.php
new file mode 100644
index 0000000..18ee731
--- /dev/null
+++ b/tests/Commands/CommandTest.php
@@ -0,0 +1,66 @@
+<?php declare(strict_types=1);
+
+namespace Bref\Cli\Test\Commands;
+
+use Bref\Cli\Cli\IO;
+use Bref\Cli\Commands\Command;
+use Symfony\Component\Console\Input\ArrayInput;
+use Symfony\Component\Console\Output\BufferedOutput;
+
+class CommandTest extends CommandTestCase
+{
+    private string $configFile;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->configFile = sys_get_temp_dir() . '/bref-cli-test-' . bin2hex(random_bytes(4)) . '.yml';
+        file_put_contents($this->configFile, "service: shop\nbref:\n    team: acme\n");
+    }
+
+    protected function tearDown(): void
+    {
+        unlink($this->configFile);
+        parent::tearDown();
+    }
+
+    public function test_asks_for_colors_when_the_output_is_a_terminal(): void
+    {
+        [$status, $display] = $this->runCommand(decorated: true);
+
+        $this->assertSame(0, $status, $display);
+        $this->assertSame(['environmentId' => 12, 'command' => 'about', 'ansi' => true], $this->requestBodies['/api/v1/commands/start']);
+        // Printed as is: the terminal renders the colors
+        $this->assertStringContainsString("\e[32mLaravel\e[39m", $display);
+    }
+
+    public function test_no_colors_when_the_output_is_not_a_terminal(): void
+    {
+        [$status, $display] = $this->runCommand(decorated: false);
+
+        $this->assertSame(0, $status, $display);
+        $this->assertFalse($this->requestBodies['/api/v1/commands/start']['ansi']);
+    }
+
+    /**
+     * @return array{int, string} The exit code and the output
+     */
+    private function runCommand(bool $decorated): array
+    {
+        $command = new Command($this->brefCloud([
+            '/api/v1/environments/find' => $this->environment(),
+            '/api/v1/commands/start' => ['id' => 5],
+            '/api/v1/commands/5' => ['status' => 'success', 'output' => "\e[32mLaravel\e[39m 13"],
+        ]));
+        $input = new ArrayInput(['args' => 'about', '--config' => $this->configFile]);
+        $input->setInteractive(false);
+        $output = new BufferedOutput(decorated: $decorated);
+        // What the application does before running a command
+        IO::init($input, $output);
+
+        $status = $command->run($input, $output);
+        IO::stop();
+
+        return [$status, $output->fetch()];
+    }
+}
diff --git a/tests/Commands/CommandTestCase.php b/tests/Commands/CommandTestCase.php
index 3664714..d4819a0 100644
--- a/tests/Commands/CommandTestCase.php
+++ b/tests/Commands/CommandTestCase.php
@@ -14,6 +14,8 @@ abstract class CommandTestCase extends TestCase
     private array $agentVariables = [];
     /** @var list<string> Paths and query strings of the requests sent to Bref Cloud */
     protected array $requests = [];
+    /** @var array<string, mixed> JSON bodies of the requests sent to Bref Cloud, indexed by path */
+    protected array $requestBodies = [];
 
     protected function setUp(): void
     {
@@ -41,10 +43,13 @@ protected function runByAnAgent(): void
      */
     protected function brefCloud(array $routes): BrefCloudClient
     {
-        $client = new MockHttpClient(function (string $method, string $url) use ($routes): MockResponse {
+        $client = new MockHttpClient(function (string $method, string $url, array $options) use ($routes): MockResponse {
             $path = (string) parse_url($url, PHP_URL_PATH);
             $query = (string) parse_url($url, PHP_URL_QUERY);
             $this->requests[] = urldecode($path . ($query ? "?$query" : ''));
+            if (is_string($options['body'] ?? null) && $options['body'] !== '') {
+                $this->requestBodies[$path] = json_decode($options['body'], true);
+            }
             if (! array_key_exists($path, $routes)) {
                 $this->fail("Unexpected request: $method $url");
             }