Color

#f3fafc

#f3fafc
hex#f3fafc
rgbrgb(243, 250, 252)
hslhsl(193, 60%, 97%)
oklchoklch(0.98 0.008 216.6)
Closest name: Cotton Ball (#f2f7fd)Relative luminance 0.9445

Colors that go with #f3fafc

Charcoal, Amber and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #f3fafc

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#fcf5f3

#f3fcf9 · #f3f5fc

#fcf3fa · #fafcf3

Split-complementary

Open in tool →

#fcf3f5 · #fcf9f3

#f9f3fc · #fcf5f3 · #f5fcf3

Contrast

#f3fafc as textRatioAAAA largeAAAFix
Aaon white
1.06:1failfailfail
  • AA: use #267e97 as the text (4.65:1)
  • AAA: use #1d6072 as the text (7.07:1)
  • AA: or shift the background to #707070 (4.69:1)
  • AAA: or shift the background to #545454 (7.17:1)
Aaon black
19.89:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f3fafc as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#f3fafc reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f3fafc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #f3fafc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f3fafc-a2b5be-df4e75-1f242d-e9f1ef?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md