fix: improve ANSI black/brightBlack contrast for readability

editors/vscode/themes/lume-color-theme.json

@@ -121,15 +121,15 @@
 
     "terminal.background": "#12101e",
     "terminal.foreground": "#d8d0e4",
-    "terminal.ansiBlack": "#1e1a2c",
+    "terminal.ansiBlack": "#56526c",
     "terminal.ansiRed": "#c49080",
     "terminal.ansiGreen": "#a0d4a8",
     "terminal.ansiYellow": "#c4b080",
     "terminal.ansiBlue": "#8cc0e0",
     "terminal.ansiMagenta": "#b8a0e0",
     "terminal.ansiCyan": "#88c0b8",
     "terminal.ansiWhite": "#b0a8c4",
-    "terminal.ansiBrightBlack": "#302c42",
+    "terminal.ansiBrightBlack": "#68647e",
     "terminal.ansiBrightRed": "#d0a0b8",
     "terminal.ansiBrightGreen": "#a8d4b8",
     "terminal.ansiBrightYellow": "#e8b4a0",

editors/zed/themes/lume.json

@@ -141,15 +141,15 @@
         "terminal.foreground": "#d8d0e4",
         "terminal.bright_foreground": "#d8d0e4",
         "terminal.dim_foreground": "#b0a8c4",
-        "terminal.ansi.black": "#1e1a2c",
+        "terminal.ansi.black": "#56526c",
         "terminal.ansi.red": "#c49080",
         "terminal.ansi.green": "#a0d4a8",
         "terminal.ansi.yellow": "#c4b080",
         "terminal.ansi.blue": "#8cc0e0",
         "terminal.ansi.magenta": "#b8a0e0",
         "terminal.ansi.cyan": "#88c0b8",
         "terminal.ansi.white": "#b0a8c4",
-        "terminal.ansi.bright_black": "#302c42",
+        "terminal.ansi.bright_black": "#68647e",
         "terminal.ansi.bright_red": "#d0a0b8",
         "terminal.ansi.bright_green": "#a8d4b8",
         "terminal.ansi.bright_yellow": "#e8b4a0",

lua/lume/palette.lua

@@ -31,15 +31,15 @@ M.accents = {
 }
 
 M.ansi = {
-  black = "#1e1a2c",
+  black = "#56526c",
   red = "#c49080",
   green = "#a0d4a8",
   yellow = "#c4b080",
   blue = "#8cc0e0",
   magenta = "#b8a0e0",
   cyan = "#88c0b8",
   white = "#b0a8c4",
-  brightBlack = "#302c42",
+  brightBlack = "#68647e",
   brightRed = "#d0a0b8",
   brightGreen = "#a8d4b8",
   brightYellow = "#e8b4a0",

palette.json

@@ -26,15 +26,15 @@
     "honey": "#c4b080"
   },
   "ansi": {
-    "black": "#1e1a2c",
+    "black": "#56526c",
     "red": "#c49080",
     "green": "#a0d4a8",
     "yellow": "#c4b080",
     "blue": "#8cc0e0",
     "magenta": "#b8a0e0",
     "cyan": "#88c0b8",
     "white": "#b0a8c4",
-    "brightBlack": "#302c42",
+    "brightBlack": "#68647e",
     "brightRed": "#d0a0b8",
     "brightGreen": "#a8d4b8",
     "brightYellow": "#e8b4a0",

scripts/validate-contrast.ts

@@ -99,5 +99,10 @@ export function validatePalette(palette: Palette): ValidationResult {
     if (bg.surface0) check(`${name} on surface0`, hex, bg.surface0, 3);
   }
 
+  // ANSI black/brightBlack: must be readable as foreground on base
+  const ansi = palette.ansi || {};
+  if (ansi.black) check("ansi black on base", ansi.black, bg.base, 2);
+  if (ansi.brightBlack) check("ansi brightBlack on base", ansi.brightBlack, bg.base, 3);
+
   return { pass: failures.length === 0, failures };
 }

terminals/alacritty/lume.toml

@@ -36,7 +36,7 @@ foreground = "#d8d0e4"
 background = "#0e0c18"
 
 [colors.normal]
-black = "#1e1a2c"
+black = "#56526c"
 red = "#c49080"
 green = "#a0d4a8"
 yellow = "#c4b080"
@@ -46,7 +46,7 @@ cyan = "#88c0b8"
 white = "#b0a8c4"
 
 [colors.bright]
-black = "#302c42"
+black = "#68647e"
 red = "#d0a0b8"
 green = "#a8d4b8"
 yellow = "#e8b4a0"

terminals/foot/lume.ini

@@ -10,7 +10,7 @@ selection-foreground = d8d0e4
 selection-background = 262236
 urls = 8cc0e0
 
-regular0 = 1e1a2c
+regular0 = 56526c
 regular1 = c49080
 regular2 = a0d4a8
 regular3 = c4b080
@@ -19,7 +19,7 @@ regular5 = b8a0e0
 regular6 = 88c0b8
 regular7 = b0a8c4
 
-bright0 = 302c42
+bright0 = 68647e
 bright1 = d0a0b8
 bright2 = a8d4b8
 bright3 = e8b4a0

terminals/ghostty/lume

@@ -9,15 +9,15 @@ selection-background = 262236
 selection-foreground = d8d0e4
 
 # ANSI colors
-palette = 0=1e1a2c
+palette = 0=56526c
 palette = 1=c49080
 palette = 2=a0d4a8
 palette = 3=c4b080
 palette = 4=8cc0e0
 palette = 5=b8a0e0
 palette = 6=88c0b8
 palette = 7=b0a8c4
-palette = 8=302c42
+palette = 8=68647e
 palette = 9=d0a0b8
 palette = 10=a8d4b8
 palette = 11=e8b4a0

terminals/iterm2/lume.itermcolors

@@ -9,13 +9,13 @@
     <key>Alpha Component</key>
     <real>1</real>
     <key>Blue Component</key>
-    <real>0.172549</real>
+    <real>0.423529</real>
     <key>Color Space</key>
     <string>sRGB</string>
     <key>Green Component</key>
-    <real>0.101961</real>
+    <real>0.321569</real>
     <key>Red Component</key>
-    <real>0.117647</real>
+    <real>0.337255</real>
   </dict>
   <key>Ansi 1 Color</key>
   <dict>
@@ -113,13 +113,13 @@
     <key>Alpha Component</key>
     <real>1</real>
     <key>Blue Component</key>
-    <real>0.258824</real>
+    <real>0.494118</real>
     <key>Color Space</key>
     <string>sRGB</string>
     <key>Green Component</key>
-    <real>0.172549</real>
+    <real>0.392157</real>
     <key>Red Component</key>
-    <real>0.188235</real>
+    <real>0.407843</real>
   </dict>
   <key>Ansi 9 Color</key>
   <dict>

terminals/kitty/lume.conf

@@ -10,8 +10,8 @@ cursor_text_color #12101e
 url_color #8cc0e0
 
 # Black
-color0 #1e1a2c
-color8 #302c42
+color0 #56526c
+color8 #68647e
 
 # Red
 color1 #c49080

terminals/wezterm/lume.toml

@@ -13,7 +13,7 @@ scrollbar_thumb = "#302c42"
 split = "#262236"
 compose_cursor = "#c4b080"
 ansi = [
-  "#1e1a2c",
+  "#56526c",
   "#c49080",
   "#a0d4a8",
   "#c4b080",
@@ -23,7 +23,7 @@ ansi = [
   "#b0a8c4",
 ]
 brights = [
-  "#302c42",
+  "#68647e",
   "#d0a0b8",
   "#a8d4b8",
   "#e8b4a0",

terminals/windows-terminal/lume.json

@@ -4,15 +4,15 @@
   "foreground": "#d8d0e4",
   "cursorColor": "#d0a0b8",
   "selectionBackground": "#262236",
-  "black": "#1e1a2c",
+  "black": "#56526c",
   "red": "#c49080",
   "green": "#a0d4a8",
   "yellow": "#c4b080",
   "blue": "#8cc0e0",
   "purple": "#b8a0e0",
   "cyan": "#88c0b8",
   "white": "#b0a8c4",
-  "brightBlack": "#302c42",
+  "brightBlack": "#68647e",
   "brightRed": "#d0a0b8",
   "brightGreen": "#a8d4b8",
   "brightYellow": "#e8b4a0",

tests/contrast.test.ts

@@ -82,4 +82,34 @@ describe("validatePalette", () => {
   it("throws on missing required palette groups", () => {
     expect(() => validatePalette({} as any)).toThrow("Palette missing required group");
   });
+
+  it("fails when ansi black has insufficient contrast against base", () => {
+    const badPalette = {
+      name: "bad",
+      variant: "dark",
+      backgrounds: { base: "#12101e" },
+      foregrounds: { text: "#d8d0e4" },
+      accents: {},
+      ansi: { black: "#12101e" },
+      special: {},
+    };
+    const results = validatePalette(badPalette as any);
+    expect(results.pass).toBe(false);
+    expect(results.failures.some(f => f.name.includes("ansi black"))).toBe(true);
+  });
+
+  it("fails when ansi brightBlack has insufficient contrast against base", () => {
+    const badPalette = {
+      name: "bad",
+      variant: "dark",
+      backgrounds: { base: "#12101e" },
+      foregrounds: { text: "#d8d0e4" },
+      accents: {},
+      ansi: { brightBlack: "#1e1a2c" },
+      special: {},
+    };
+    const results = validatePalette(badPalette as any);
+    expect(results.pass).toBe(false);
+    expect(results.failures.some(f => f.name.includes("ansi brightBlack"))).toBe(true);
+  });
 });