feat: my own neovim theme!

lua/lavender-dimmed/lib/color.lua

@@ -0,0 +1,47 @@
+local Color = {}
+Color.__index = Color
+
+function Color.new(hex)
+  local self = setmetatable({}, Color)
+  hex = hex:gsub("^#", "")
+  self.r = tonumber(hex:sub(1, 2), 16)
+  self.g = tonumber(hex:sub(3, 4), 16)
+  self.b = tonumber(hex:sub(5, 6), 16)
+  return self
+end
+
+function Color:to_css()
+  return string.format("#%02x%02x%02x", self.r, self.g, self.b)
+end
+
+function Color:blend(other, factor)
+  other = type(other) == "string" and Color.new(other) or other
+  return Color.new(
+    string.format(
+      "#%02x%02x%02x",
+      math.floor(self.r + (other.r - self.r) * factor + 0.5),
+      math.floor(self.g + (other.g - self.g) * factor + 0.5),
+      math.floor(self.b + (other.b - self.b) * factor + 0.5)
+    )
+  )
+end
+
+function Color:darken(amount)
+  return self:blend("#000000", amount)
+end
+
+function Color:lighten(amount)
+  return self:blend("#ffffff", amount)
+end
+
+function Color:saturate(factor)
+  local gray = math.floor(0.299 * self.r + 0.587 * self.g + 0.114 * self.b + 0.5)
+  local gray_color = Color.new(string.format("#%02x%02x%02x", gray, gray, gray))
+  return self:blend(gray_color, 1 - factor)
+end
+
+return setmetatable(Color, {
+  __call = function(_, hex)
+    return Color.new(hex)
+  end,
+})