Optimism vs KAYAK
86 token-level differences between these two design systems.
Background
#ffffff → #ffffff Text
#000000 → #1e2026 Brand
#ff0420 → #ff690f Border
#e0e0e0 → #dadde0 Display font
Optimism Display → Open Sans Body size
16px → 14px colors 73 changed
~
text #000000 → #1e2026 ~
text-body #1a1a1a → #2c2f36 ~
text-muted #5a5a5a → #5e6470 ~
brand #ff0420 → #ff690f ~
brand-hover #cc0319 → #e85a07 ~
brand-active #a30214 → #c54a00 ~
brand-deep #7d020f → #7a3300 ~
border #e0e0e0 → #dadde0 ~
border-soft #ebebeb → #eaecef ~
border-strong #c0c0c0 → #a4a9b4 ~
scrim rgba(0,0,0,0.65) → rgba(0,0,0,0.5) ~
link #ff0420 → #0066cc ~
link-hover #cc0319 → #004a99 +
bg-alt #f8f8f8 +
bg-data #f0f3f5 +
surface #ffffff +
surface-soft #f4f4f4 +
surface-strong #e8e8e8 +
surface-orange-soft #fff2e8 +
surface-graph #fdf3eb +
surface-deal #fff2e8 +
text-strong #0a0c10 +
text-soft #8a909d +
text-on-brand #ffffff +
text-on-orange #ffffff +
brand-light #fff2e8 +
brand-graph #ff690f +
brand-graph-fill #fdf3eb +
link-visited #5a4392 +
border-input-focus #ff690f +
divider #dadde0 +
shadow-card rgba(0,0,0,0.06) +
shadow-elev rgba(0,0,0,0.14) +
shadow-deep rgba(255,105,15,0.18) +
success #0a8c3e +
success-soft #e8f6ee +
success-deep #0a6b32 +
warning #d97706 +
warning-soft #fff7e6 +
danger #cc2935 +
danger-soft #fdeaec +
info #0066cc +
info-soft #e8f0f8 +
best-flag #0a8c3e +
cheapest-flag #0a8c3e +
fastest-flag #9333ea +
short-stop-flag #0066cc +
hacker-fare #ff690f +
pricegraph-stroke #ff690f +
pricegraph-fill #fdf3eb +
pricegraph-low #0a8c3e +
pricegraph-high #cc2935 −
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-subtle #8a8a8a −
text-on-dark #ffffff −
text-on-dark-soft #a8a8a8 −
brand-soft #ff04201a −
brand-glow rgba(255,4,32,0.40) −
on-brand #ffffff −
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) typography 5 changed
~
display {"family":"Optimism Display","size":72} → {"family":"Open Sans","size":72} ~
h1 {"family":"Optimism Display","size":40} → {"family":"Open Sans","size":40} ~
h2 {"family":"Optimism Display","size":32} → {"family":"Open Sans","size":32} ~
body {"family":"Inter","size":16} → {"family":"Open Sans","size":14} ~
label {"family":"JetBrains Mono","size":11} → {"family":"SFMono-Regular","size":11} radius 3 changed
~
button 12px → 6px ~
card 12px → 8px ~
pill 999px → 9999px spacing 5 changed
~
xs 4px → 2px ~
sm 8px → 4px ~
md 16px → 12px ~
lg 32px → 24px ~
xl 64px → 40px