Skip to content

Allow high-contrast input colors to be used as-is #3209

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
May 2, 2025
Merged

Allow high-contrast input colors to be used as-is #3209

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions .changeset/rich-lamps-compare.md
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@gitbook/colors": patch
---

Change lightness check for color step 9 to allow input colors with a higher-than-needed contrast
6 changes: 5 additions & 1 deletion packages/colors/src/transformations.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -214,7 +214,11 @@ export function colorScale(
const targetL =
foregroundColor.L * mapping[index] + backgroundColor.L * (1 - mapping[index]);

if (index === 8 && !mix && Math.abs(baseColor.L - targetL) < 0.2) {
if (
index === 8 &&
!mix &&
(darkMode ? targetL - baseColor.L < 0.2 : baseColor.L - targetL < 0.2)
) {
// Original colour is close enough to target, so let's use the original colour as step 9.
result.push(hex);
continue;
Expand Down