---
title: "MTFillLayer.outlineColor | Mobile sdk | Mobile sdk android | Android"
description: "outlineColor"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# MTFillLayer.outlineColor

@Serializable(with = [ColorAsHexSerializer::class](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fill/-color-as-hex-serializer/))

var [outlineColor](https://docs.maptiler.com/mobile-sdk/android/api/-map-tiler-s-d-k/com.maptiler.maptilersdk.map.style.layer.fill/-m-t-fill-layer/outline-color/): [Int](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)?

The outline color of the fill.

Matches the value of fill-color if unspecified.