Color

#f3f7f7

#f3f7f7
hex#f3f7f7
rgbrgb(243, 247, 247)
hslhsl(180, 20%, 96%)
oklchoklch(0.973 0.004 197.1)
Closest name: whitesmoke (#f5f5f5)Relative luminance 0.9229

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f7f3f3

#f3f7f5 · #f3f5f7

#f7f3f7 · #f7f7f3

Split-complementary

Open in tool →

#f7f3f5 · #f7f5f3

#f5f3f7 · #f7f3f3 · #f5f7f3

Contrast

#f3f7f7 as textRatioAAAA largeAAAFix
Aaon white
1.08:1failfailfail
  • AA: use #547d7d as the text (4.56:1)
  • AAA: use #3d5c5c as the text (7.28:1)
  • AA: or shift the background to #707070 (4.59:1)
  • AAA: or shift the background to #545454 (7.02:1)
Aaon black
19.46:1passpasspassPasses 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 #f3f7f7 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#f3f7f7 reads as cool, muted, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f3f7f7
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 #f3f7f7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f3f7f7-a2bbbe-d45994-1f272d-e9f1ed?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