Design System PreviewOptimism

Pure-white canvas, signature `#ff0420` red voltage, and Inter at confident L2 register — Ethereum rollup as bold optimistic infrastructure.

Light Dark
01 · Color Palette

Color Palette

bg
#ffffff
bg-soft
#f5f5f5
bg-strong
#e6e6e6
bg-dark
#000000
bg-dark-elev
#1a1a1a
bg-dark-deep
#0a0a0a
surface-card
#ffffff
surface-card-soft
#f5f5f5
text
#000000
text-body
#1a1a1a
text-muted
#5a5a5a
text-subtle
#8a8a8a
text-on-dark
#ffffff
text-on-dark-soft
#a8a8a8
brand
#ff0420
brand-hover
#cc0319
brand-active
#a30214
brand-soft
#ff04201a
brand-glow
rgba(255,4,32,0.40)
on-brand
#ffffff
brand-deep
#7d020f
brand-bright
#ff3344
border
#e0e0e0
border-soft
#ebebeb
02 · Typography Scale

Typography Scale

display 56px
Display headline
h1 40px
Large heading 1
h2 28px
Heading 2
h3 22px
Heading 3
body-lg 18px
Body large — primary reading paragraph for marketing surfaces.
body 16px
Body — standard reading paragraph at the system default.
body-sm 14px
Small body — captions and secondary copy.
label 11px
Label / mono uppercase
mono 13px
const greeting = "Hello world";
03 · Button Variants

Button Variants

04 · Card Examples

Card Examples

New

Online Payments

Accept cards, wallets, and bank debits. One integration, every method.

Beta

Revenue Recognition

Automate revenue accrual for subscriptions, usage, and one-time charges.

Pro

Platform Payments

Build marketplaces and platforms with built-in payouts and compliance.

05 · Form Elements

Form Elements

Submit
06 · Spacing Scale

Spacing Scale

xs · 4px
sm · 8px
md · 16px
lg · 24px
xl · 32px
2xl · 48px
3xl · 64px
4xl · 96px
07 · Border Radius

Border Radius

0
2
4
8
12
pill
08 · Elevation

Elevation

level 1
level 2
level 3
level 4