rotate warm artwork hues out of the brown/olive range for dark tones

This commit is contained in:
austinried
2026-10-04 00:29:56 +00:00
parent 97397e6e5e
commit a54a54ffa4
3 changed files with 69 additions and 12 deletions
@@ -53,6 +53,7 @@ fun artworkColorsFromSeeds(
): ArtworkColors {
val (hue, saturation, _) = Color(primarySeed or 0xFF000000.toInt()).toHsl()
val s = saturation.coerceAtMost(0.85f)
val darkHue = harmonizeDarkHue(hue)
fun tone(
h: Float,
@@ -61,7 +62,7 @@ fun artworkColorsFromSeeds(
) = Color.hsl(h % 360f, sat.coerceIn(0f, 1f), l.coerceIn(0f, 1f))
val primary = tone(hue, s, 0.62f).withMinLuminance(PRIMARY_MIN_LUMINANCE)
val background = tone(hue, (s * 0.35f).coerceAtMost(0.20f), 0.06f)
val background = tone(darkHue, (s * 0.35f).coerceAtMost(0.20f), 0.06f)
val onBackground = tone(hue, (s * 0.10f).coerceAtMost(0.08f), 0.95f)
val secondary =
@@ -75,14 +76,14 @@ fun artworkColorsFromSeeds(
} ?: tone(hue, s, 0.40f)
val gradientSat = if (s > 0.05f) s.coerceAtLeast(MIN_GRADIENT_SATURATION) else s
val gradientHigh = tone(hue, (gradientSat * 0.85f).coerceAtMost(0.70f), 0.26f)
val gradientLow = tone(hue, gradientSat * 0.55f, 0.12f)
val gradientHigh = tone(darkHue, (gradientSat * 0.85f).coerceAtMost(0.70f), 0.26f)
val gradientLow = tone(darkHue, gradientSat * 0.55f, 0.12f)
val accents =
listOf(
tone(hue, gradientSat, 0.72f).withMaxLuminance(ACCENT_MAX_LUMINANCE),
tone(darkHue, gradientSat, 0.72f).withMaxLuminance(ACCENT_MAX_LUMINANCE),
secondary.withMaxLuminance(ACCENT_MAX_LUMINANCE),
)
val darkPrimary = tone(hue, gradientSat * 0.75f, 0.10f)
val darkPrimary = tone(darkHue, gradientSat * 0.75f, 0.10f)
val backdrop = maxOf(gradientHigh.luminance(), gradientLow.luminance(), accents.maxOf { it.luminance() })
val onSurfaceVariant =
@@ -108,15 +109,15 @@ fun artworkColorsFromSeeds(
surface = background,
onSurface = onBackground,
surfaceTint = primary,
surfaceVariant = tone(hue, s * 0.25f, 0.17f),
surfaceVariant = tone(darkHue, s * 0.25f, 0.17f),
onSurfaceVariant = onSurfaceVariant,
surfaceContainerLowest = tone(hue, s * 0.25f, 0.04f),
surfaceContainerLow = tone(hue, s * 0.25f, 0.08f),
surfaceContainer = tone(hue, s * 0.25f, 0.10f),
surfaceContainerHigh = tone(hue, s * 0.22f, 0.14f),
surfaceContainerHighest = tone(hue, s * 0.20f, 0.18f),
surfaceContainerLowest = tone(darkHue, s * 0.25f, 0.04f),
surfaceContainerLow = tone(darkHue, s * 0.25f, 0.08f),
surfaceContainer = tone(darkHue, s * 0.25f, 0.10f),
surfaceContainerHigh = tone(darkHue, s * 0.22f, 0.14f),
surfaceContainerHighest = tone(darkHue, s * 0.20f, 0.18f),
outline = tone(hue, s * 0.15f, 0.55f),
outlineVariant = tone(hue, s * 0.18f, 0.28f),
outlineVariant = tone(darkHue, s * 0.18f, 0.28f),
)
return ArtworkColors(
@@ -174,6 +175,11 @@ private fun blendHue(
return (from + delta * fraction + 360f) % 360f
}
private fun harmonizeDarkHue(hue: Float): Float {
if (hue !in 0f..120f) return hue
return 358f - hue * (40f / 120f)
}
@Composable
fun rememberArtworkColors(
ref: CoverArtRef?,