diff --git a/langchain/input.py b/langchain/input.py
index 94fad908280..21c7333e56e 100644
--- a/langchain/input.py
+++ b/langchain/input.py
@@ -1,7 +1,7 @@
 """Handle chained inputs."""
 from typing import Dict, List, Optional
 
-_COLOR_MAPPING = {"blue": 104, "yellow": 103, "red": 101, "green": 102}
+_COLOR_MAPPING = {"blue": 51, "yellow": 229, "pink": 219, "green": 85}
 
 
 def get_color_mapping(
@@ -21,7 +21,7 @@ def print_text(text: str, color: Optional[str] = None, end: str = "") -> None:
         print(text, end=end)
     else:
         color_str = _COLOR_MAPPING[color]
-        print(f"\x1b[{color_str}m{text}\x1b[0m", end=end)
+        print(f"\u001b[48;5;{color_str}m{text}\x1b[0m", end=end)
 
 
 class ChainedInput:
diff --git a/tests/unit_tests/test_input.py b/tests/unit_tests/test_input.py
index dd17bfc5deb..cc837cbabc8 100644
--- a/tests/unit_tests/test_input.py
+++ b/tests/unit_tests/test_input.py
@@ -48,7 +48,7 @@ def test_chained_input_verbose() -> None:
     chained_input.add("baz", color="blue")
     sys.stdout = old_stdout
     output = mystdout.getvalue()
-    assert output == "\x1b[104mbaz\x1b[0m"
+    assert output == "\x1b[48;5;51mbaz\x1b[0m"
     assert chained_input.input == "foobarbaz"
 
 
@@ -70,5 +70,5 @@ def test_get_color_mapping_excluded_colors() -> None:
     """Test getting of color mapping with excluded colors."""
     items = ["foo", "bar"]
     output = get_color_mapping(items, excluded_colors=["blue"])
-    expected_output = {"foo": "yellow", "bar": "red"}
+    expected_output = {"foo": "yellow", "bar": "pink"}
     assert output == expected_output