Fix mismatched fallback text colour on the initials badge/button

The initials badge and reset button hardcoded two independent
fallback literals -- a background (#ec4899 / #0ea5e9) and a text
colour (#ffffff) -- that were only ever chosen together for a club's
own colour via Club._content_color_for. #ffffff on #ec4899 or
#0ea5e9 actually contrasts worse than black by the same WCAG formula
the app already uses elsewhere (verified: 6.4:1 vs 3.3:1, and 7.6:1
vs 2.8:1). Added a contrast_color filter so the text colour is always
derived from whatever background hex is actually in play -- real
club colour or fallback alike -- instead of a second, independently
guessed literal that can silently drift out of sync with the first.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
2026-08-12 09:50:07 +02:00
parent 9901a90266
commit 67841491a6
7 changed files with 72 additions and 4 deletions

View File

@@ -39,7 +39,7 @@
{% else %}
<table role="presentation" cellpadding="0" cellspacing="0" border="0" width="48" style="width:48px;">
<tr>
<td align="center" valign="middle" width="48" height="48" bgcolor="{{ club.secondary_color|default:"#ec4899" }}" style="width:48px; height:48px; border-radius:24px; background-color:{{ club.secondary_color|default:"#ec4899" }}; color:{{ club.secondary_content_color|default:"#ffffff" }}; font-family: Arial, Helvetica, sans-serif; font-size:16px; font-weight:bold;">
<td align="center" valign="middle" width="48" height="48" bgcolor="{{ club.secondary_color|default:"#ec4899" }}" style="width:48px; height:48px; border-radius:24px; background-color:{{ club.secondary_color|default:"#ec4899" }}; color:{{ club.secondary_color|default:"#ec4899"|contrast_color }}; font-family: Arial, Helvetica, sans-serif; font-size:16px; font-weight:bold;">
{{ club.initials }}
</td>
</tr>
@@ -60,7 +60,7 @@
<p style="margin:0 0 20px 0;">{% trans "You're receiving this email because you or someone else has requested a password reset for your user account. It can be safely ignored if you did not request one." %}</p>
{% trans "Reset your password" as reset_label %}
{% include "email/_button.html" with href=password_reset_url label=reset_label bg=club.primary_color|default:"#0ea5e9" fg=club.primary_content_color|default:"#ffffff" %}
{% include "email/_button.html" with href=password_reset_url label=reset_label bg=club.primary_color|default:"#0ea5e9" fg=club.primary_color|default:"#0ea5e9"|contrast_color %}
{% if username %}
<p style="margin:0;">{% blocktrans %}In case you forgot, your username is {{ username }}.{% endblocktrans %}</p>