Design Index

costco.com

Measured in a real browser on 4 November 2026. For reference and benchmarking.

Colours

primary#005dab
neutral#000000
neutral#5f5f5f
neutral#333333
neutral#ffffff
neutral#c7c7c7
neutral#eff7fb
neutral#707070
neutral#eeeeee

Fonts

  • Costco Sans Web

Type scale

32px
24px
22px
18px
16px
15px
14px
13px
12px

Corners

3px
8px
50px
100px

Spacing and depth

Spacing base: 4px

Distinct shadows: 4

Text and background pairs below WCAG AA: 0

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