Duo Pair focuses on creating coordinated two-color UI accent palettes from a single base hue. It is catalogued under Colour pickers & palettes on PulseGate.

Duo Pair is a consumer product built for UI designers and frontend developers.

Yes — Duo Pair is free to use.

What platforms does Duo Pair run on?

Duo Pair runs on the web and embeddable surfaces.

Is Duo Pair still maintained?

Unverified. Duo Pair has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to Duo Pair?

Similar projects tracked by PulseGate include iPalettes - Color palettes, DesignPicker, and Random Color Palettes.

Duo Pair is developed by Dominique E. McReynolds.

How long has Duo Pair been around?

Duo Pair first shipped in 2026.

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Duo Pair

Name: Duo Pair
Author: Dominique E. McReynolds

mozilla.orgColour pickers & palettes

Duo Pair is a Firefox extension that generates a coordinated two-color duo from a selected base hue. It is intended for UI designers and frontend developers creating accent colors for interfaces.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

Duo Pair is a Colour pickers & palettes project. It focuses on creating coordinated two-color UI accent palettes from a single base hue. Duo Pair is a consumer product aimed at UI designers and frontend developers. Duo Pair costs nothing to use. Duo Pair is available on the web and embeddable surfaces.

It is developed by Dominique E. McReynolds, and it first shipped in 2026. Key capabilities include base hue input, two-color generation, and UI accent palettes. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Base hue input
Two-color generation
UI accent palettes
Firefox integration
No data collection

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed28 Aug · 16:59 UTC
Duo Pair verified against its public source
Source: PulseGate · Open

Frequently asked questions about Duo Pair

What is Duo Pair?: Duo Pair focuses on creating coordinated two-color UI accent palettes from a single base hue. It is catalogued under Colour pickers & palettes on PulseGate.
Who is Duo Pair for?: Duo Pair is a consumer product built for UI designers and frontend developers.
Is Duo Pair free?: Yes — Duo Pair is free to use.
What platforms does Duo Pair run on?: Duo Pair runs on the web and embeddable surfaces.
Is Duo Pair still maintained?: Unverified. Duo Pair has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Duo Pair?: Similar projects tracked by PulseGate include iPalettes - Color palettes, DesignPicker, and Random Color Palettes.iPalettes - Color palettes DesignPicker Random Color Palettes
Who makes Duo Pair?: Duo Pair is developed by Dominique E. McReynolds.
How long has Duo Pair been around?: Duo Pair first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 28 Aug 2026
Built for: UI designers and frontend developers
Model: B2C
Solves: Creating coordinated two-color UI accent palettes from a single base hue.

Registered as

Firefox Add-ons: duo-pair

Developer

Dominique E. McReynolds

Index record

Indexed: 28 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 28 Aug 2026

Identity audit (13)

Slug: duo-pair-mozilla-org
Lifecycle state recorded: 28 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 28 Aug 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Recorded source: taxonomy-pass-a.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 28 Aug 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/duo-pair

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