SoundCloud Mobile — design system & UI screens

Entertainment · 2 screens · soundcloud.com

Music streaming home feed featuring curated playlist cards (Daily Drops, Weekly Wave) with hero images and update frequency, followed by an editorial section with themed playlists in a carousel layout, and a now-playing player at bottom. Official Google Play listing screenshot.

Open in Mozaika →

This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/website/soundcloud-mobile.

Decoded design system

SoundCloud Mobile's decoded design system: background #121212, text #FFFFFF, accent #4D230D, link #4D230D, primary #4D230D; type scale h1 34px / h2 22px / body 17px; 8px spacing base; 12px base radius. The single interactive/action color is #4D230D — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Role	Value
bg	`#121212`
surface	`#202020`
border	`#353535`
text	`#FFFFFF`
text_muted	`#A4A4A4`
primary	`#4D230D`
accent	`#4D230D`
link	`#4D230D`
button_bg	`#4D230D`
button_text	`#121212`

Using these colors

Action color #4D230D — the single interactive color; only on things you click or must notice, never large fills.
primary, accent, link, button_bg are all #4D230D — one role, not several (the action color).
accent #4D230D — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.

Typography

h1: 34px
h2: 22px
body: 17px

Spacing

base unit: 8px
scale: 4px, 6px, 8px, 12px, 13px, 16px, 18px, 24px, 30px, 32px

Radii

base: 12px
button: 12px

Motion

Micro-interactions run at 100ms (dominant) with ease.

durations: 100ms · 200ms · 300ms
easings: ease · linear
animated properties: opacity, visibility, transform, background

Native design tokens

Token	Value
`--white-color`	`#fff`
`--button-secondary-active-font-color`	`#121212`
`--support-bg-color`	`#558b2f`
`--button-primary-background-color`	`#121212`
`--button-tertiary-disabled-font-color`	`#121212`
`--success-color`	`#008850`
`--link-secondary-hover-color`	`hsla(0,0%,40%,0.4)`
`--input-invalid-background-color`	`#f3f3f3`
`--button-primary-loading-background-color`	`#121212`
`--artist-color`	`#5a45fd`

…and 110 more measured on the page.

Button states (measured)

primary hover: color rgba(18, 18, 18, 0.4)
primary focus: box-shadow rgb(4, 77, 210) 0px 0px 0px 2px inset

Layout (measured)

container max-width: 1240px

Motion choreography (measured)

Load order: header.header → div.onetrust-pc-dark-filter → div.otFlat → span.sc-artwork×12 → div.frontHero__carousel → div.frontHero__carouselNavDo×2

Scroll reveal: 40 elements rest at opacity 0, animate in over 0.1s ease.

Input (measured)

height 36px · radius 3px

Responsive (measured)

breakpoints: 1079px · 1239px
mobile (390px): hero 28px · nav inline

Full design system, per-section tokens & DESIGN.md / Tailwind / CSS exports →