Optimism vs YouTube
78 token-level differences between these two design systems.
Background
#ffffff → #0f0f0f Text
#000000 → #ffffff Brand
#ff0420 → #ff0000 Border
#e0e0e0 → #3f3f3f Display font
Optimism Display → YouTube Sans Body size
16px → 14px colors 70 changed
~
bg #ffffff → #0f0f0f ~
surface-card #ffffff → transparent ~
text #000000 → #ffffff ~
text-body #1a1a1a → #ffffff ~
text-muted #5a5a5a → #aaaaaa ~
brand #ff0420 → #ff0000 ~
brand-hover #cc0319 → #cc0000 ~
brand-active #a30214 → #aa0000 ~
brand-deep #7d020f → #990000 ~
border #e0e0e0 → #3f3f3f ~
border-soft #ebebeb → #272727 ~
border-strong #c0c0c0 → #5e5e5e +
bg-deep #000000 +
bg-light #ffffff +
surface #272727 +
surface-strong #3f3f3f +
surface-soft #1f1f1f +
surface-overlay rgba(0,0,0,0.85) +
surface-light #f9f9f9 +
text-strong #ffffff +
text-soft #717171 +
text-inverse #0f0f0f +
text-disabled #717171 +
text-light #0f0f0f +
text-light-muted #606060 +
brand-shorts #ff0033 +
accent-link #3ea6ff +
accent-link-light #065fd4 +
accent-premium #f1c21b +
accent-music #ff0033 +
accent-tv #ff0000 +
accent-kids #ff0000 +
border-light #e5e5e5 +
shadow-card rgba(0,0,0,0.4) +
shadow-modal rgba(0,0,0,0.5) 0 8px 24px +
scrim-thumb linear-gradient(0deg, rgba(0,0,0,0.7) 0%, transparent 60%) +
progress-watched #ff0000 +
progress-rail rgba(255,255,255,0.2) +
progress-buffer rgba(255,255,255,0.4) +
recording-dot #ff0000 +
live-badge-bg #ff0000 +
duration-badge-bg rgba(0,0,0,0.6) +
success #0db750 +
warning #f1c21b +
danger #cc0000 +
info #3ea6ff +
shorts-tab #ff0033 +
community-tab #3ea6ff −
bg-soft #f5f5f5 −
bg-strong #e6e6e6 −
bg-dark #000000 −
bg-dark-elev #1a1a1a −
bg-dark-deep #0a0a0a −
surface-card-soft #f5f5f5 −
text-subtle #8a8a8a −
text-on-dark #ffffff −
text-on-dark-soft #a8a8a8 −
brand-soft #ff04201a −
brand-glow rgba(255,4,32,0.40) −
brand-bright #ff3344 −
semantic-up #10b981 −
semantic-down #ef4444 −
semantic-warning #f59e0b −
semantic-info #ff0420 −
gradient-hero linear-gradient(135deg, #000000 0%, #1a1a1a 60%, #7d020f 100%) −
gradient-red linear-gradient(135deg, #ff0420 0%, #cc0319 100%) −
focus-ring rgba(255,4,32,0.45) −
scrim rgba(0,0,0,0.65) −
link #ff0420 −
link-hover #cc0319 typography 5 changed
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display {"family":"Optimism Display","size":72} → {"family":"YouTube Sans","size":72} ~
h1 {"family":"Optimism Display","size":40} → {"family":"YouTube Sans","size":40} ~
h2 {"family":"Optimism Display","size":32} → {"family":"YouTube Sans","size":32} ~
body {"family":"Inter","size":16} → {"family":"YouTube Sans","size":14} ~
label {"family":"JetBrains Mono","size":11} → {"family":"Roboto Mono","size":11} radius 2 changed
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button 12px → 8px ~
pill 999px → 9999px spacing 1 changed
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xl 64px → 48px