Invitation decline link lacks contrast

WCAG warnings in the test class [org.xwiki.invitation.test.docker.AllIT]:
__________
Validation in the test method [guestActionsOnNonexistantMessage]
Check for [org.xwiki.invitation.test.po.InvitationSenderPage] at http://xwikiweb:8080/xwiki/bin/view/Invitation/WebHome.
Found [2] items

1: Elements must have sufficient color contrast
Description: Ensures the contrast between foreground and background colors meets WCAG 2 AA contrast ratio thresholds
Help URL: https://dequeuniversity.com/rules/axe/4.6/color-contrast?application=axeAPI
Help: Elements must have sufficient color contrast
Impact: serious
Tags: cat.color, wcag2aa, wcag143, ACT

HTML element:
<a href="http://xwikiweb:8080/xwiki/bin/view/Invitation/InvitationGuestActions?doAction_decline=y&messageID=01056999779093368301034350678919172504046474832291018" style="font-size:130%;color:#f88;float:right;text-decoration:none;">
Decline
</a>
Selector: [p:nth-child(2) > a:nth-child(2)]
Fix any of the following:
Element has insufficient color contrast of 2.3 (foreground color: #ff8888, background color: #ffffff, font size: 13.6pt (18.2px), font weight: normal). Expected contrast ratio of 4.5:1