What is your colour blind spot?

One in twelve of the men on your team can't read the colour cues in the tools, reports, and systems they use every day. Most have never told you. This guide shows you where colour is quietly costing you talent, and how to fix it.

Colour vision deficiency affects roughly one in twelve men and one in two hundred women. It is one of the most common inherited conditions in the world, and almost no one discloses it at work.When your dashboards, status indicators, portals, websites, and safety signage carry meaning through colour alone, capable people spend extra effort to keep up, get screened out of roles they could do well, and quietly disengage. The deficiency isn't in your people. It's in the design.

What's inside the guide

• Where colour quietly fails across the tools and systems your team uses daily
• Why this is a talent and retention issue, not an accessibility checkbox
• The real cost: disengagement, hiring screens that exclude capable people, and the turnover bill
• A practical six-part audit you can run on your own organisation, scored and colour-independent
• Four habits that fix most of it

Built so anyone can read it, including the colour-blind leader you may not know is on your team. Nothing in it depends on colour to be understood.

About Anthea

Anthea Mumby is a Canadian business consultant and former insurance brokerage owner who has spent decades leading teams and making complex information clear. She also has a colour vision deficiency, which means she has navigated colour-coded business systems that were never designed with her in mind. That combination of executive judgment and lived experience is the foundation of her work in colour inclusion.

Your Next Step

The guide shows you where you stand. A Colour-Inclusive Review is how you fix it: a structured walk-through of your real materials, with a prioritised list of what to change and in what order.

The Colour-Inclusive Institute · founded by Anthea Mumby