duskbox

A calm, equiluminant theme family for Neovim and VS Code (and forks: Cursor, VSCodium, Windsurf…). Sixteen variants — eight core moods (light → dark plus high-contrast and a neon "cyber" option), with dusk and cyber each also in four signature flavors — all generated from one OKLCH source of truth, so the two editors never drift.

Warm declarations, cool literals, bold keywords & types for legibility. Calm by default; punchy where you want it (hello, cyber).

Palette

duskbox OKLCH palette

Designed in OKLCH: the nine accents share one lightness band (equiluminant) and get their variety from hue, not brightness, so nothing vibrates. In the signature variants, this/import/constructor and the UI accent take a single signature color.

Variants

Variant	Mood
`duskbox-dawn`	soft light (early morning)
`duskbox-day`	bright light
`duskbox-day-hc`	high-contrast light
`duskbox-storm`	soft mid-dark
`duskbox-dusk`	balanced dark (default)
`duskbox-midnight`	deep, dim dark
`duskbox-night-hc`	high-contrast dark
`duskbox-cyber`	neon-on-black (high contrast)

Signature variants: dusk and cyber also come in four signature flavors — the standout tokens (this/import/constructor) and the UI accent take a signature color: duskbox-{dusk,cyber}-{azure,neon-purple,magenta,salmon}.

Gallery

The eight core variants:

dusk cyber night-hc midnight storm day day-hc dawn

Signature variant previews (azure · neon-purple · magenta · salmon, each on dusk and cyber): see the full gallery on GitHub.

Neovim

With lazy.nvim:

{
  "ih-hugh/duskbox",
  lazy = false,
  priority = 1000,
  config = function()
    require("duskbox").setup({ variant = "dusk", bold = true, transparent = false })
    vim.cmd.colorscheme("duskbox-dusk")
  end,
}

Switch variants anytime with :colorscheme duskbox-<variant> (e.g. :colorscheme duskbox-cyber).

setup options:

option	default	meaning
`variant`	`"dusk"`	default variant for `require("duskbox").load()`
`bold`	`true`	bold keywords & types (set `false` to disable)
`transparent`	`false`	clear the editor background
`lualine`	`true`	apply the matching lualine theme on load (set `false` to keep your own)
`on_highlights`	`nil`	`function(variant) ... end` hook after load

VS Code / Cursor / VSCodium / Windsurf

VS Code: install Duskbox from the Marketplace, then Preferences: Color Theme and pick a Duskbox variant.
Forks (Cursor, VSCodium, Windsurf…): install Duskbox from Open VSX, or download the .vsix from Releases and run code --install-extension duskbox.vsix (or your fork's equivalent CLI).

Design

duskbox is designed in OKLCH (a perceptually-uniform color space): accents share a narrow lightness band (equiluminant) at moderate chroma, so nothing "vibrates," and variety comes from hue rather than brightness. High-contrast variants widen the foreground/background gap and raise chroma; cyber reuses a neon palette. Every accent is gated on WCAG contrast in the test suite.

Duskbox

Hugo Cedano