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fix: improve pill contrast by using WCAG contrast ratios on composited backgrounds

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Pills with semi-transparent backgrounds were using raw color luminance to pick
text color, ignoring the page background showing through. This caused unreadable
text on dark themes for mid-luminance colors like orange. Now composites the
rgba background over the actual page bg (dark/light) before computing WCAG
contrast ratios, and centralizes the logic in a shared color-contrast utility.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
dotta 2026-03-23 07:48:50 -05:00
parent e73bc81a73
commit d73c8df895
6 changed files with 118 additions and 27 deletions
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3
ui/src/components/IssueProperties.tsx
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@ -1,4 +1,5 @@
import { useCallback, useMemo, useRef, useState } from "react";
import { pickTextColorForPillBg } from "@/lib/color-contrast";
import { Link } from "@/lib/router";
import type { Issue } from "@paperclipai/shared";
import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
@ -329,7 +330,7 @@ export function IssueProperties({ issue, onUpdate, inline }: IssuePropertiesProp
style={{
borderColor: label.color,
backgroundColor: `${label.color}22`,
color: label.color,
color: pickTextColorForPillBg(label.color, 0.13),
}}
>
{label.name}