:015dccd2-27a2-4898-94a4-ded3a39d32a8: - 015dccd2 27a2 4898 94a4 ded3a39d32a8 Slack emoji

Install the EmojiBox Chrome extension and push :015dccd2-27a2-4898-94a4-ded3a39d32a8: straight to Slack from this page — no download, no upload.

Or do it manually

1. Click Download PNG at the top.
2. In Slack, open the emoji picker and choose Add custom emoji.
3. Upload the file, name it 015dccd2-27a2-4898-94a4-ded3a39d32a8, and you're done.