Acid
A brutalist theme: acid-lime primary, stark black borders, zero radius, and loud mono type for bold, in-your-face interfaces.
Build something people love.
A live preview of this theme — every color, font, radius, and shadow you see is rendered straight from its tokens.
Color system
Click any swatch to copy. Contrast graded against WCAG.
Typography
Body sample. Space Grotesk carries running text — readable paragraphs, comfortable measure, and a rhythm that holds up across long pages of content and UI.
Radius, shadow & fonts
Components
Real UI rendered with this theme's tokens.
A surface for grouping content, with the theme's border, radius, and shadow.
Principles, guidelines & component specs
Do's & don'ts, spacing, motion, iconography, accessibility, and exact component specs — all in the design.md too.
Do
- •Use zero radius and thick black borders.
- •Keep acid-lime as the single shocking accent.
Don't
- •Don't round corners or add soft shadows.
- •Don't dilute the rawness with extra colours.
- •Abrupt, mechanical motion suits the brutalist tone.
Hover to feel this theme's base transition.
Lucide · 2.5px stroke · 1rem. Outline icons with a consistent stroke width; size icons to match adjacent text and align them optically.
- Never use color as the only signal — pair it with text, an icon, or a shape.
- Every interactive element must be keyboard reachable and show a visible focus ring.
- Honor prefers-reduced-motion: reduce by disabling non-essential animation.
- Keep a logical heading order and give every form control a label.
Button
| Background | var(--primary) |
| Text | var(--primary-foreground) |
| Radius | 0rem |
| Padding | 0 1.1rem |
| Height | 2.7rem |
| Weight | 700 |
Badge
| Background | var(--accent) / var(--primary) |
| Text | var(--accent-foreground) / var(--primary-foreground) |
| Radius | 0rem |
| Padding | 0.15rem 0.55rem |
| Font size | 0.72rem |
| Weight | 700 |
Use for status, counts, and short labels. Keep to one or two words.
Alert
| Radius | 0rem |
| Padding | 1rem 1.25rem |
| Border | 1px solid var(--border) |
Always pair the color with an icon and a text label — never rely on color alone.
Form field
| Background | var(--background) |
| Border | 1px solid var(--input) |
| Radius | 0rem |
| Height | 2.7rem |
| Padding | 0.5rem 0.75rem |
Label sits above the field; helper or error text sits below.
Card
| Background | var(--card) |
| Text | var(--card-foreground) |
| Border | 1px solid var(--border) |
| Radius | 0rem |
| Padding | 1.5rem |
| Shadow | 4px 4px 0 0 rgba(26,46,5,0.90) |
The design brief
Acid is a brutalist design system: acid-lime primary, stark black borders, zero radius, and loud monospace type. It is raw, confident, and impossible to ignore.
Principles
- Hard edges — zero radius and thick black borders everywhere.
- Acid-lime as a single, shocking accent on a stark canvas.
- Mono type and flat surfaces reject softness and gloss.
When to use
Use Acid for portfolios, music, fashion drops, and brands that want a brutalist statement. Avoid it for trust-sensitive flows where loudness hurts.
Signature details
- Acid-lime
#4d7c0fprimary; black borders; 0 radius. - Space Grotesk + Space Mono.
Use this with your AI
Download or copy the design.md and paste it into Claude, Cursor, or v0 — it tells the agent exactly which colors, fonts, radii, and shadows to use, so your site comes out looking like this.
Export tokens
Drop straight into your codebase.
:root {
--radius: 0rem;
--background: #f7fee7;
--foreground: #1a2e05;
--card: #ffffff;
--card-foreground: #1a2e05;
--popover: #ffffff;
--popover-foreground: #1a2e05;
--primary: #4d7c0f;
--primary-foreground: #ffffff;
--secondary: #ecfccb;
--secondary-foreground: #1a2e05;
--muted: #eef3e0;
--muted-foreground: #4f6233;
--accent: #d9f99d;
--accent-foreground: #3f6212;
--destructive: #dc2626;
--destructive-foreground: #ffffff;
--border: #1a2e05;
--input: #c5d9a0;
--ring: #4d7c0f;
--shadow-sm: 0 2px 0 0 rgba(26,46,5,0.90);
--shadow-md: 4px 4px 0 0 rgba(26,46,5,0.90);
--shadow-lg: 8px 8px 0 0 rgba(26,46,5,0.90);
--font-sans: 'Space Grotesk', ui-sans-serif, system-ui, sans-serif;
--font-mono: 'Space Mono', ui-monospace, SFMono-Regular, monospace;
--ease-standard: steps(2, end);
--ease-emphasized: cubic-bezier(0.16,1,0.3,1);
--duration-base: 160ms;
}
.dark {
--background: #0c1403;
--foreground: #e8f5d0;
--card: #141d08;
--card-foreground: #e8f5d0;
--popover: #141d08;
--popover-foreground: #e8f5d0;
--primary: #a3e635;
--primary-foreground: #1a2e05;
--secondary: #1d2a0c;
--secondary-foreground: #e8f5d0;
--muted: #1d2a0c;
--muted-foreground: #a3b87f;
--accent: #3f5314;
--accent-foreground: #d9f99d;
--destructive: #fb7185;
--destructive-foreground: #450a0a;
--border: #a3e635;
--input: #2b3a14;
--ring: #a3e635;
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