Color

#f3f8fc

#f3f8fc
hex#f3f8fc
rgbrgb(243, 248, 252)
hslhsl(207, 60%, 97%)
oklchoklch(0.976 0.008 241.7)
Closest name: Cotton Ball (#f2f7fd)Relative luminance 0.9322

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fcf7f3

#f3fcfb · #f3f3fc

#fcf3f8 · #f8fcf3

Split-complementary

Open in tool →

#fcf3f3 · #fcfbf3

#fbf3fc · #fcf7f3 · #f3fcf3

Contrast

#f3f8fc as textRatioAAAA largeAAAFix
Aaon white
1.07:1failfailfail
  • AA: use #2e7ab8 as the text (4.57:1)
  • AAA: use #235c8b as the text (7.06:1)
  • AA: or shift the background to #707070 (4.63:1)
  • AAA: or shift the background to #545454 (7.08:1)
Aaon black
19.64:1passpasspassPasses 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 #f3f8fc as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#f3f8fc reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f3f8fc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

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

analyze #f3f8fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f3f8fc-9cadc4-df4e53-1f212d-e9f1f1?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