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A reference site uses a blue I like, and typing hex codes into a picker until it looks close is never quite right.
What you'll have at the end
The exact hex value of a color pulled straight off another page, saved to your own palette.
You need
A page open in Chrome with an element whose color you're about to replace, and a second window or tab showing the color you actually want to match.
Not covered
Surveying every color already used across a whole page at once; this is about matching one specific pixel, not auditing a site's full color scheme.
Local overrides that outlive a page refresh
when you want the sampled color to survive a page refresh while you keep testing it, before you've touched your real stylesheet
Give your color and spacing values names with custom properties
when you want to name every repeated color and spacing value across the whole stylesheet, beyond the one blue you just sampled
Checked 21 Aug 2026
Part of the Chrome DevTools cookbook