SaaS

Y Combinator

Startup-institutional clarity — the unmistakable YC Orange (#ff6600) as a single decisive accent over a pure-white canvas, near-black sans-serif text, square-cornered buttons, and a no-nonsense Helvetica-grade type voice that reads like a term sheet.

Color Palette23 tokens

background#ffffff

surface#ffffff

surface-soft#f7f7f7

surface-orange#fff3e9

ink#1a1a1a

ink-secondary#5c5c5c

ink-muted#8a8a8a

primary#ff6600

primary-hover#e65c00

primary-soft#ff8533

link#ff6600

link-hover#e65c00

focus-ring#ff6600

gray-900#1a1a1a

gray-700#3d3d3d

gray-600#5c5c5c

gray-400#8a8a8a

gray-200#e0e0e0

gray-100#ebebeb

gray-50#f7f7f7

border#e0e0e0

on-primary#ffffff

on-ink#ffffff

Buttons

TypographyGoogle Font

Inter

display-hero

The quick brown fox

52px · 700 · -1.04px

section-heading

The quick brown fox

36px · 700 · -0.72px

sub-heading

The quick brown fox

24px · 600 · -0.48px

card-title

The quick brown fox

20px · 600 · -0.2px

body-large

The quick brown fox

18px · 400 · 0px

IconsLucide

Set: Lucide · brand-matched

Formfocus ring

you@company.com

Password

••••••••

Card · Shapes

Y Combinator

Startup-institutional clarity — the unmistakable YC Orange (#ff6600) as a single decisive accent over a pure-white canva…

SaaS

none

Elevation

RING

CARD

ELEVATED

Controls

Off

✓Checked

Unchecked

Selected

Option

Alerts

Heads up — a new version of the design system is available.

Saved. Your changes are live across all surfaces.

Some tokens are missing a contrast-safe pairing.

Couldn’t reach the server. Retry in a moment.

Badges

SolidSoftOutlineNewv2.0

FAQ

Y Combinator

Startup-institutional clarity — the unmistakable YC Orange (#ff6600) as a single decisive accent over a pure-white canvas, near-black sans-serif text, square-cornered but…

How does it integrate with my stack?

Is there a free tier?

Tabs

OverviewActivitySettings

DayWeekMonth

Stats

48.2k

Active users

+12.4%

$12.8k

MRR

+3.1%

99.9%

Uptime

−0.02%

Table

Member	Plan	Status
AQAvery Quinn	Pro	Active
JLJordan Lee	Team	Pending
SRSam Rivera	Free	Active

Avatars

AQJLSR+5

Avery Quinn

Online · Owner

Slider · Progress

Volume62%

Storage used78%

Tooltip · Popover

Brand-styled tooltipHover target

Navigation bar

Banner

Pricing

Pro

$24 /mo

Unlimited projects
Priority support
Custom domains

Stepper

CartDetails3Payment4Review

Breadcrumb

HomeSaaSY Combinator

Toast

Changes savedUndo

You have 3 new updates

Activity

Avery created a new project

2h ago

Jordan left a comment

5h ago

Sam shipped v2.0

1d ago

Notifications

AQAvery Quinn invited you to Y Combinator.

2 minutes ago

JLJordan Lee approved your design tokens.

1 hour ago

SRSam Rivera mentioned you in a thread.

Yesterday

Code

theme.ts

// Y Combinator tokens
export const theme = {
  primary: "#ff6600",
  radius: "6px",
}

Calendar

March 2026

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Pagination

‹123…12›

Brand moment

Y Combinator's website is a study in institutional confidence — the design equivalent of a one-page term sheet. There is exactly one brand color, the famous YC Orange (, #ff6600),…

Y Combinator · SaaS

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