Monzo colour things to avoid

Summary

A light "Things to avoid" page that calls out four colour mistakes, each shown as a real-looking mockup card with a red-cross warning above it.

Visual description

Off-white background. Top-left: a "Our colour" pill, the "Things to avoid" heading, and the line "Our colour don'ts." A row of four rounded mockup cards follows, each headed by a small red circular cross and a one-line rule. The examples: a navy card with multi-colour typography ("Don't use multiple colours in typography"); a white card where the logo is a different colour from the type ("Don't make the logo a different colour from typography"); a magenta card with teal type in off-palette colours ("Don't use colours that aren't in our palette"); and a photo with low-contrast green text ("Don't use colours that are hard to read on photography").

Key takeaway

Each don't is shown as a finished-looking but deliberately wrong mockup, so the mistake is obvious rather than abstract. The red-cross-plus-one-line caption is an efficient guardrail pattern.

Reuse notes

A reusable "don'ts" template for any guideline section: four cards, a warning mark, a one-line rule each. Showing realistic-but-broken examples is more memorable than describing rules. Pairs with an equivalent "do" page if needed.