Opportunity brief · Nov 4, 2026

WCAG Color contrast checker

To check the color contrast between foreground and background of the texts

RevenueNo price in the listingNo price listed

OpportunityNot scoredAn opportunity needs a revenue figure of at least $1k a month.

1–2★ ratingsnot publishedcomplaints from Aug 2024–May 2026, 83% in the last 24 months

Build difficultyLowSimple color-math web app; no payments, regulation, hardware, or network effects; browser compatibility is main risk.

The pitch, and what the numbers say

WCAG Color contrast checker — Developer

No revenue figure: see why on the full x-ray.

Why users leave

The free diagnosis shows the top complaint. The full brief has every cluster, the build ideas and the buyers.

Bugs/Reliability · 83% of complaints read

Reviewer says nothing happens when using the extension; no visible result or feedback.

“Nothing's happening sadly.”

What a challenger would build

3 build ideas, each answering a complaint above — in the full brief

Closest alternatives

Colour Contrast Checker—

Who is buying right now

4 buyer threads in the same market in the last 30 days, with links and excerpts in the full brief.

Get the full WCAG Color contrast checker brief

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.

How to read this

Sources: the product's public listing and reviews, its published price, and public forum threads. Revenue is an estimate unless marked verified by the founder; the formula and its inputs are on the full x-ray. Complaints are grouped by a language model and each quote is a verbatim excerpt, linked to the original review. Build difficulty is a model's reading of the listing and the complaints, not a measurement. Figures are a snapshot of Nov 4, 2026. Corrections: corrections.

Open the full x-ray →