Link is only distinguished by colour

WCAG 1.4.1 Use of Colour, level A
Serious
Colour
Automated
Rendered pass

Why it matters

People who cannot tell colours apart cannot see links that differ only by hue. If the link colour is the only clue, it needs 3:1 against the surrounding text.

How to fix it

Underline links in body text (Safe Fixes can do that), or make the link colour at least 3:1 against the text around it, and give it another cue on hover and focus.

p a { text-decoration: underline; }

Read the W3C guidance: Understanding 1.4.1 Use of Colour.

Related rules

Text does not have enough contrast (WCAG 1.4.3)
Text misses the enhanced (AAA) contrast level (WCAG 1.4.6)
Interface component or border has low contrast (WCAG 1.4.11)
Text sits over an image or gradient (WCAG 1.4.3)

Find this on your own site. A11yMate scans every page and lists where it happens. See pricing or browse all rules.