Marcelo Paiva

All criteriaPresent as slides

A woman in a wide brimmed hat types on a laptop surrounded by dense leaves and plants.Meant to show: A woman in a wide straw sun hat

Success criterion 1.4.11

Non-text Contrast

User interface components and meaningful graphics have a contrast ratio of at least 3:1 against adjacent colors.

  • Level AA
  • Principle 1: Perceivable
  • Guideline 1.4: Distinguishable

In a user’s words

“Is there a text box here? The border is so pale I've been typing into thin air.”

Who this helps: Low Vision

What each role can do

Product manager
Include controls, focus rings and chart graphics in contrast requirements, not only text.
Designer
Give input borders, icons, toggles and chart segments at least 3:1 contrast against their surroundings.
Developer
Define border, icon and state colors as tokens that meet 3:1, and check each state.
Tester
Measure contrast of control boundaries, states and essential graphics in light and dark themes.

Once it is fixed

“I can see where every field starts and ends. No more typing into the void!”

The quotes are written to illustrate the criterion. They are not testimonials from real people. For the official wording, find 1.4.11 in the W3C quick reference for WCAG 2.2 (opens in a new tab).

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