Merge branch 'bluesky-social:main' into main

1 files changed, 17 insertions, 0 deletions

diff --git a/src/alf/util/colorGeneration.ts b/src/alf/util/colorGeneration.ts
new file mode 100644
index 000000000..929a01d3a
--- /dev/null
+++ b/src/alf/util/colorGeneration.ts
@@ -0,0 +1,17 @@
+export const BLUE_HUE = 211
+export const RED_HUE = 346
+export const GREEN_HUE = 152
+
+/**
+ * Smooth progression of lightness "stops" for generating HSL colors.
+ */
+export const COLOR_STOPS = [
+  0, 0.05, 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.85, 0.9, 0.95, 1,
+]
+
+export function generateScale(start: number, end: number) {
+  const range = end - start
+  return COLOR_STOPS.map(stop => {
+    return start + range * stop
+  })
+}