Ember
A bold red theme: confident crimson primary, charcoal neutrals, and strong type for high-stakes launches and bold brands.
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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. Sora 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 red for the single decisive action.
- •Ground it with charcoal neutrals, not pure black.
Don't
- •Don't flood surfaces with red.
- •Don't confuse the brand red with destructive states.
- •Fast, decisive motion matches the bold tone.
Hover to feel this theme's base transition.
Lucide · 2px 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 | 0.5rem |
| Padding | 0 1.2rem |
| Height | 2.7rem |
| Weight | 700 |
Badge
| Background | var(--accent) / var(--primary) |
| Text | var(--accent-foreground) / var(--primary-foreground) |
| Radius | 0.375rem |
| Padding | 0.15rem 0.55rem |
| Font size | 0.75rem |
| Weight | 700 |
Use for status, counts, and short labels. Keep to one or two words.
Alert
| Radius | 0.75rem |
| 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 | 0.5rem |
| 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 | 0.75rem |
| Padding | 1.5rem |
| Shadow | 0 10px 28px -8px rgba(220,38,38,0.18) |
The design brief
Ember is a bold red design system for high-stakes launches, sports, automotive, and bold brands. Confident crimson over charcoal neutrals reads as decisive and energetic.
Principles
- Red is the statement — one strong primary for CTAs and emphasis.
- Charcoal neutrals ground the red so it never feels alarming.
- Heavy headings and tight spacing project confidence.
When to use
Use Ember for bold product launches, sports/automotive brands, and campaigns that want urgency. Avoid it for calm, clinical, or finance-heavy UIs.
Signature details
- Crimson
#dc2626primary; charcoal#1c1917text. - Sora headings, 0.5rem radius.
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: 0.5rem;
--background: #fffcfc;
--foreground: #1c1917;
--card: #ffffff;
--card-foreground: #1c1917;
--popover: #ffffff;
--popover-foreground: #1c1917;
--primary: #dc2626;
--primary-foreground: #ffffff;
--secondary: #fef2f2;
--secondary-foreground: #1c1917;
--muted: #f5f1f1;
--muted-foreground: #6b5f5d;
--accent: #fee2e2;
--accent-foreground: #991b1b;
--destructive: #b91c1c;
--destructive-foreground: #ffffff;
--border: #ece4e4;
--input: #ece4e4;
--ring: #dc2626;
--shadow-sm: 0 1px 2px rgba(28,25,23,0.08);
--shadow-md: 0 10px 28px -8px rgba(220,38,38,0.18);
--shadow-lg: 0 28px 56px -14px rgba(220,38,38,0.26);
--font-sans: 'Sora', ui-sans-serif, system-ui, sans-serif;
--font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
--ease-standard: cubic-bezier(0.4,0,0.2,1);
--ease-emphasized: cubic-bezier(0.16,1,0.3,1);
--duration-base: 230ms;
}
.dark {
--background: #140a0a;
--foreground: #f4e9e9;
--card: #1e1212;
--card-foreground: #f4e9e9;
--popover: #1e1212;
--popover-foreground: #f4e9e9;
--primary: #f87171;
--primary-foreground: #450a0a;
--secondary: #291818;
--secondary-foreground: #f4e9e9;
--muted: #291818;
--muted-foreground: #bfa3a3;
--accent: #7f1d1d;
--accent-foreground: #fee2e2;
--destructive: #ef4444;
--destructive-foreground: #450a0a;
--border: #34201f;
--input: #34201f;
--ring: #f87171;
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