prismdinstrument

EXTRACTED · 10 SECTIONS · 63 COLORS · GRADE B

astro.build

Accent #5e6ad2 · MDIO — every value below measured via getComputedStyle(), not asserted by hand.

colors

faces

shadows

keyframes

DESIGN.md tokens.json

real render · source of truth

astro.build is built on a near-black canvas (rgb(12, 15, 25)). The system uses rgb(97, 218, 251) as the high-saturation accent for primary actions. Fully-rounded CTAs (9999px) signal a friendly, tactile interaction model alongside Obviously as the primary typeface. A layered elevation system (4 distinct shadows) building a clear front-to-back hierarchy. Interactions are smoothed by transitions across many elements, with little or no keyframe animation.

Color — roles, semantics & the full census

63 colors measured · click any swatch to copy

Canvas

#0c0f19

AAA 17.61:1

Ink

#f2f6fa

AAA 17.61:1

Accent

#61dafb

AAA 11.78:1

Line

#858b98

AA 5.6:1

Semantic states

No semantic state colors detected — this system signals state through weight & motion, not hue.

63 colors mined from the live renderexpand

Type — the ladder, in the real face

4 roles · rendered live in the real Inter (captured woff2) · lines are editable, click any spec to copy

display xl

display-xl48px · 700

display md

display-md16px · 600 · ×3.00

body

body16px · 400 · ×1.00

button

button16px · 300 · ×1.00

Depth — elevation is extracted, not invented

4 box-shadows measured on the live page · click a tile to copy its raw value

shadow-1

shadow-2

shadow-3

Motion — easings, transitions & live keyframes

2 easing curves · 2 keyframes · hover a tile to preview

Easing & transitions

transition-3cubic-bezier(0, 0, 0.2, 1)

transition-4cubic-bezier(0.4, 0, 0.2, 1)

2 keyframe animations extracted

float

marquee

Spacing & radius, made spatial

9 spacing steps · 7 radii · bars are exact px widths

Spacing scale

xxs · 2px

xs · 4px

sm · 8px

md · 12px

base · 16px

lg · 24px

xl · 32px

2xl · 48px

3xl · 80px

Radius

none
0px

xs
4px

sm
8px

md
12px

lg
20px

xl
9999px

full
9999px

Components — the closed vocabulary

13 component families · 60 variants counted on the live DOM

Component	Variants found
buttons	×10
links	×10
cards	×9
heading H2	×7
nav Links	×6
tabs	×5
footer Links	×3
code Block	×3
inputs	×2
accordion	×2
badges	×1
heading H1	×1
heading H3	×1

Component style specs (§4)expand

Buttons

Pill

Background: #0c0f19 {colors.canvas}
Text: #ffffff {colors.ink-subtle}
Padding: 8px 16px
Radius: 9999px
Border: 1px solid rgba(133, 139, 152, 0.2)
Font: 16px weight 600
Use: Status pills, tags, chips

Ghost

Background: transparent
Text: #bfc1c9 {colors.ink-muted}
Padding: 12px
Radius: 6px
Font: 16px weight 400
Use: Subtle action, toolbar, nav button

Pill

Background: rgba(6, 9, 19, 0.55)
Text: #f2f6fa {colors.ink}
Padding: 0px
Radius: 9999px
Font: 16px weight 400
Use: Status pills, tags, chips

Icon Button

Background: #17191e
Text: #ffffff {colors.ink-subtle}
Padding: 0px
Radius: 3.2px
Font: 13.3333px weight 400
Use: Toolbar/UI icons

Primary Brand

Background: #61dafb {colors.primary}
Text: #030712
Padding: 8px 16px
Radius: 8px
Font: 16px weight 400
Use: Primary CTA / brand action

Cards & Containers

Standard Card

Background: #0c0f19 {colors.canvas}
Padding: 0px
Radius: 16px
Border: 1px solid rgba(133, 139, 152, 0.2)
Use: Content containers, listing items
Hover: border: 1px solid rgba(133, 139, 152, 0.4), borderColor: #858b98

Inputs & Forms

Text Input

Background: #060913
Text: #f2f6fa {colors.ink}
Padding: 4px 12px
Radius: 8px

Layout — structure & dimensions

4 layout metrics measured

max Width1200px

header Height80px

sidebar Width0px

container Padding0px

Responsive — real breakpoints

5 media-query stops read from the live CSS

640px

768px

1024px

1280px

1536px

Do's & Don'ts

25 enforceable rules pulled verbatim from the spec

Use dark background (`#0c0f19`) as the foundation — this is a dark-mode-native design

Use ui-sans-serif as the primary typeface — it defines the brand personality

Use the extracted shadow patterns for elevation — they are tuned to match the brand palette

Use full-pill radius (9999px) only for specific elements (avatars, pills, toggles)

Use #61dafb (`#61dafb`) as the primary accent — it's the brand's signature interactive color

Use 8px border-radius on buttons — the standard corner rounding for interactive elements

Use 16px border-radius on cards — consistent with the grid card corners

Style form inputs with a `1px solid rgb(35, 38, 45)` border — use border-based inputs, not floating labels or underline-only

Maintain nav height at 80px — consistent vertical space for the navigation bar

Respect the 4px–32px spacing range — the design uses a wide scale for visual breathing room

Make the hero full-viewport (≥70% screen height) — this design uses an immersive hero, not a tall navbar

Include exactly 2 CTAs in the hero (primary + secondary) — this design pattern is multi-action, not single-purpose

Each card includes a top image — imagery is part of the card identity, not optional

Use a 4-column grid on desktop — density matters for this content type

Use expandable accordion for the FAQ — saves vertical space and lets users self-navigate

Include a newsletter signup in the footer — email capture is part of the conversion funnel

Don't

Don't use light backgrounds — the dark canvas is the native medium

Don't substitute with generic sans-serif or serif — the custom font carries the brand

Don't invent new shadow values — use only the extracted shadow levels

Don't apply pill radius on rectangular buttons or cards — it's reserved for specific interactive elements

Don't introduce additional saturated accent colors — the palette is intentionally controlled

Don't remove the input border — the border is the primary affordance indicator for form fields

Don't collapse or hide the nav on scroll without an explicit scroll-triggered animation — the design uses fixed nav presence

Don't make the nav sticky — this design lets it scroll away to maximize content focus

Don't put a CTA button in the nav — this design uses links only at the top

Agent guide & export

Paste-ready prompt + the real files behind this page

Build a UI in the astro.build design system. Canvas #0c0f19 · ink #f2f6fa · accent #61dafb. Type: MDIO — respect the size/weight ladder in §3. Radius, spacing, shadow: use only the extracted scales (no magic numbers). Full spec follows — paste the DESIGN.md below into your agent.

Every value above was getComputedStyle-verified.

$ npx prismd add astro

DESIGN.md · narrative spec tokens.json

A · Instrument B · Press