Color

#f3f3fb

#f3f3fb
hex#f3f3fb
rgbrgb(243, 243, 251)
hslhsl(240, 50%, 97%)
oklchoklch(0.966 0.011 286.2)
Closest name: Cloud Break (#f6f1fe)Relative luminance 0.9012

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbfbf4

#f4f7fb · #f7f4fb

#fbf4f4 · #f4fbf4

Split-complementary

Open in tool →

#fbf7f4 · #f7fbf4

#fbf4f7 · #fbfbf4 · #f4fbf7

Contrast

#f3f3fb as textRatioAAAA largeAAAFix
Aaon white
1.1:1failfailfail
  • AA: use #6a6acd as the text (4.61:1)
  • AAA: use #4747c2 as the text (7.12:1)
  • AA: or shift the background to #6e6e6e (4.62:1)
  • AAA: or shift the background to #525252 (7.08:1)
Aaon black
19.02:1passpasspassPasses 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 #f3f3fb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#f3f3fb reads as cool, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f3f3fb
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 #f3f3fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f3f3fb-a19cc4-df994e-251f2d-e9edf1?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