Istanbul Theme for Slack

The Codigrate Istanbul theme for Slack. Preview the screenshot and the palette, then get it in a few steps.

Inspired by the soft daylight and sea breezes of Istanbul, this theme blends calm turquoise tones with warm historical accents to create a serene yet expressive coding environment. Light, airy backgrounds keep the editor clean and comfortable, while teals, aquas, and muted golden hues add clarity and focus to essential syntax elements.

A light theme from the Codigrate Cities collection, released 2026-01-03. Tags: Mediterranean, Historic, Airy.

A free download from codigrate.com under the MIT licence: add it to your cart, enter the e-mail address the download link goes to, and get the theme file with its install steps.

Istanbul theme for Slack, a screenshot

Getting started on Slack

  1. Download the zip with the Download button. Inside is a small text file with the theme's four colors on one line.
  2. Open the text file and copy that line.
  3. In Slack, open Preferences → Themes, scroll to the bottom and paste the line into the custom theme field.
  4. In Preferences → Appearance, choose Light or Dark mode to match the theme; in Dark mode, turn on Darker sidebars.
  5. If you switch between light and dark mode, restart Slack so the theme applies correctly.
  6. Slack applies the theme instantly across the workspace.

Istanbul color palette

Every named color of the Istanbul palette, free to download for MacOS, CorelDRAW and Figma.

Istanbul on every platform

From the blog

  • Anatomy of a Light Theme: Istanbul: Anatomy of Istanbul, a light IDE theme: marble white backgrounds, a midnight teal foreground, and syntax in Iznik turquoise, rooftop red and bazaar copper.
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