Theme generator

Emerald City — a shadcn/ui theme for Tailwind v4

Rich emerald and slate — a finance theme that signals growth.

Emerald City is the fintech palette: a saturated emerald primary that reads as growth, a slate secondary for the serious parts, and a gold accent for the one number on the page that should glow. Neutrals lean cool so the green stays crisp.

Boardroom Modern is the pairing — a confident grotesque heading over a neutral body — and the type scale is a major third so the hierarchy is clear without any headline feeling like a poster. Shadows are restrained; money does not float either.

Light mode — the stored palette
Dark mode — derived and contrast-repaired

The eight color roles

Every shadcn/ui variable in the export derives from these eight. The dark values are not a second theme: they are the light roles with lightness moved, hue and saturation held, and each pair repaired until it meets its WCAG threshold.

RoleLightDark
primary#5abfba#65c3be
secondary#54c4b8#54c4b8
accent#77bfa3#77bfa3
background#0b201f#0a1e1d
surface#102f2e#113130
text#f3f6f6#f3f6f6
muted#99b3b2#293837
border#2b4746#43706d

Typography

Optima for headings, Inter for body copy and ui-monospace for code, on a 16px base with a 1.25 modular ratio.

Shape and elevation

A 0.375rem base radius derives the --radius-sm/md/lg/xl steps; the base shadow derives the four-step elevation scale.

Extended tokens

Foregrounds, destructive, a five-step chart ramp and the sidebar set are derived from the roles — exactly the variables a Tailwind v4 shadcn/ui project reads.

The exported globals.css

This is the stylesheet the generator downloads for this preset — a Tailwind v4 @theme block that any shadcn/ui project can replace its own app/globals.css with. Open the preset in the generator to change anything, preview it on a full landing page, and add the derived .dark block or the W3C design-tokens export.

/* Emerald City — Tailwind v4 theme (generated from the styling step) */
@import "tailwindcss";

@theme {
  --color-primary: #5abfba;
  --color-secondary: #54c4b8;
  --color-accent: #77bfa3;
  --color-background: #0b201f;
  --color-surface: #102f2e;
  --color-text: #f3f6f6;
  --color-muted: #99b3b2;
  --color-border: #2b4746;
  --color-primary-foreground: #0b201f;
  --color-secondary-foreground: #f3f6f6;
  --color-accent-foreground: #f3f6f6;
  --color-destructive: oklch(0.577 0.245 27.325);
  --color-chart-1: #5abfba;
  --color-chart-2: #54c4b8;
  --color-chart-3: #77bfa3;
  --color-chart-4: #99b3b2;
  --color-chart-5: #2b4746;
  --color-sidebar: #102f2e;
  --color-sidebar-foreground: #f3f6f6;
  --color-sidebar-primary: #5abfba;
  --color-sidebar-primary-foreground: #0b201f;
  --color-sidebar-accent: #77bfa3;
  --color-sidebar-accent-foreground: #f3f6f6;
  --color-sidebar-border: #2b4746;
  --color-sidebar-ring: #5abfba;
  --font-heading: Optima, 'Segoe UI', sans-serif;
  --font-body: Inter, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, monospace;
  --radius-sm: calc(0.375rem * 0.5);
  --radius-md: 0.375rem;
  --radius-lg: calc(0.375rem * 1.5);
  --radius-xl: calc(0.375rem * 2);
  --text-xs: 0.625rem;
  --text-sm: 0.8125rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5625rem;
  --text-2xl: 1.96875rem;
  --text-3xl: 2.4375rem;
  --text-4xl: 3.0625rem;
  --shadow-sm: 0 0.667px 1.333px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 1.5px 3px 0 rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 2.25px 4.5px 0 rgba(0, 0, 0, 0.05);
  --scrollbar-size: 10px;
  --scrollbar-radius: 999px;
  --scrollbar-track: transparent;
  --scrollbar-thumb: #2b4746;
  --scrollbar-thumb-hover: #5abfba;
  --scrollbar-thumb-border: #0b201f;
  --animate-marquee: marquee 25s linear infinite;
}

@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

@layer base {
  :focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
  .dark { color-scheme: dark; }
  html {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
  }
  *::-webkit-scrollbar { width: var(--scrollbar-size); height: var(--scrollbar-size); }
  *::-webkit-scrollbar-track { background: var(--scrollbar-track); }
  *::-webkit-scrollbar-thumb {
    background-color: var(--scrollbar-thumb);
    border-radius: var(--scrollbar-radius);
    border: 2px solid var(--scrollbar-thumb-border);
  }
  *::-webkit-scrollbar-thumb:hover { background-color: var(--scrollbar-thumb-hover); }
  *::-webkit-scrollbar-corner { background: var(--scrollbar-track); }
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }
}

/* Generated with Nodlume — https://nodlume.dev/theme-generator/emerald-city */

Make it yours

A preset is a starting point, not a decision. The shadcn/ui theme generator opens this one with every control live — swap the palette, try another of the 67 font pairings, tune the radius — and exports the result. For the thinking behind the roles, read how to build a semantic UI color palette; for how the whole system is generated, read generating custom themes.

Open in the theme generator

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