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Obsidian.

HackerBlue for Obsidian is a dark theme for the Obsidian editor: deep navy surfaces, steel-blue text, and one cyan signal. One payment for the theme, updates included at no extra charge, and up to three personal devices.

Choose themes

$2.99 for Obsidian, less per theme when you pick more.

One-time payment. Limited-time offerAll 32 themes for $29.99 $92.69 if bought singlyEnds 15 November 2026

One-time purchase / 3 personal devices

Obsidian with HackerBlue: the same vault on deep navy, with steel-blue text, blue headings and a cyan callout signal.

How to install

Three steps in your device's terminal. Every command is exactly what you type; copy it, paste it, press Enter.

  1. Put the HackerBlue program on your device

    Linux or macOS: Terminal
    curl -fsSL https://hackerblue.dev/install.sh | sh
    Windows: PowerShell
    irm https://hackerblue.dev/install.ps1 | iex

  2. Sign in

    Terminal
    hackerblue login

    A page opens in your browser; sign in to your Hacker Blue account and choose Approve.

  3. Install the Obsidian theme

    Terminal
    hackerblue install obsidian

    Open Obsidian's Settings → Appearance → Themes and select Hacker Blue.

Updates come with your licence: hackerblue update obsidian when a newer version is out. hackerblue uninstall obsidian removes it and restores your previous theme selection, keeping your later settings edits. Every command, and the rest of the guide: the install guide.

Obsidian, default and in HackerBlue

The same view twice. The switch changes only the theme.

Obsidian with its stock default theme: a dark grey window with the file explorer on the left and a Welcome note whose properties, callout, checklist and table are in Obsidian's own colours. Obsidian with HackerBlue: the same vault on deep navy, with steel-blue text, blue headings and a cyan callout signal.

Obsidian 1.13.7 running on Linux, the same vault in its stock default theme and in HackerBlue. Captured from the running app in a throwaway vault.

Obsidian belongs to its owner; Hacker Blue is not affiliated with or endorsed by it.

The theme

HackerBlue for Obsidian is a dark theme for the Obsidian editor: deep navy surfaces, steel-blue text, and one cyan signal for links, selection and focus. Every colour is exposed as an Obsidian CSS variable under .theme-dark, so a snippet or a plugin can override any part of it.

It is a dark theme: if your Obsidian base colour scheme is light, Obsidian's own light palette applies. The theme uses Obsidian's fonts and icons and makes no network requests.

What the purchase includes

one-time
  • Purchase One-time

    One payment for HackerBlue for Obsidian. There is no subscription and nothing renews.

  • Updates Included

    Updates Hacker Blue publishes for this theme come with the licence at no extra charge; a version change never asks you to pay again.

  • Devices 3 active

    The licence covers up to three personal devices active at the same time, and you can deactivate one from your account page.

  • Delivery HackerBlue CLI

    The CLI downloads and installs the theme on an authorised device.

Pricing for Obsidian

The purchase runs on Whop, and Whop shows the price, currency and taxes before you pay. Buying ties the licence to a Hacker Blue account, which you use with Google or an email address and a password.

Choose themes

$2.99 for Obsidian, less per theme when you pick more.

One-time payment. Limited-time offerAll 32 themes for $29.99 $92.69 if bought singlyEnds 15 November 2026

HackerBlue Complete is the other one-time product: it includes the Obsidian theme today and the themes added to Complete later, under the same kind of licence. Pricing compares the two.

Release notes

What changed in each release. Updates are included with the licence.

2 releases

Each release has its own version. Versions follow semantic versioning:

  • Major: the look changes noticeably.
  • Minor: support for new parts of the app.
  • Patch: fixes.

The newest release is first.

  1. 1.0.123 September 2026

    Maintenance release: no visible changes.

  2. 1.0.022 September 2026

    First release.

Terms, support and the rest of the family

License sets out what the purchase lets you do with the theme files; three active personal devices, no redistribution or resale. Refund covers refunds and the EU, EEA and UK 14-day withdrawal right, and Legal has the terms of sale. Contact has the ways to reach us.

The rest of the family

32 themes are available now.

31 themes