Kilotest: Diagnoses of text contrast improvable violation by HTML element 173 on Clean Air Task Force (CATF) donate page

Basics

About the page

• URL: https://give.catf.us/campaign/756949/donate
• Tested 3 days ago on 2026-10-07 at 19:54 by job 261007T1941-qiu
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 10
  • Violations: 515
  • Violators: 123
  • Issues: 38
• Download the full technical report (JSON)

About the issue

• Why it matters: Content is not easy to understand
• Priority: lowest
• Related WCAG standard: 1.4.6
• Reported by 5 rule engines (Alfa + ASLint + HTML CodeSniffer + QualWeb + SureA11y)
• Violations: 25
• Violators: 12

About the violator

• Tag name: H2
• Text: About Clean Air Task Force
• Start tag: <h2 class="css-0 e1hoharc0">
• XPath: /html/body/div[1]/div[1]/main[1]/div[2]/div[1]/div[2]/div[1]/div[1]/div[1]/h2[1]
• Bounding box: x = 992, y = 948, width = 576, height = 38
• Reported by Alfa + ASLint

Take me there

Diagnoses

Here is how rule engines diagnose the text contrast improvable issue for HTML element 173 of the Clean Air Task Force (CATF) donate page.

1. The highest possible contrast of the text is 1:1 which is below the required contrast of 4.5:1

   Rule engine: Alfa (Siteimprove)

   Rule: r66

2. Element was excluded from scanning because it's not visible either due to being explicitly hidden or e.g. is being rendered outside of viewport, having transparency etc.

   Rule engine: ASLint (eSSENTIAL Accessibility)

   Rule: color_contrast_aaa7