Color Contrast
Serious - WCAG Level AA
The color contrast issue arises when the contrast ratio between text and its background is insufficient, making it difficult for users with visual impairments to read the content. WCAG 2.1 requires a contrast ratio of at least 4.5:1 for normal text and 3:1 for large text (18pt or 14pt bold). This is crucial for users with low vision or color blindness, as insufficient contrast can render text unreadable.
Best practices:
When choosing colors, consider using a color palette that naturally provides good contrast.
Avoid relying solely on color to convey information, as this can be problematic for color-blind users. Instead, use additional indicators like text labels or patterns.
Common mistakes:
Assuming that a color combination looks good visually without testing it against contrast standards. Always verify with a contrast checker tool.
Be cautious with background images or gradients, as they can complicate contrast calculations.
In summary, ensure that all text elements on your site meet the WCAG 2.1 AA contrast requirements by adjusting colors as needed and verifying with a contrast checker. This not only improves accessibility but also enhances overall readability for all users.