Color

#eff7fb

#eff7fb
hex#eff7fb
rgbrgb(239, 247, 251)
hslhsl(200, 60%, 96%)
oklchoklch(0.971 0.01 228.9)
Closest name: Cotton Ball (#f2f7fd)Relative luminance 0.9184

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbf3ef

#effbf9 · #eff1fb

#fbeff7 · #f7fbef

Split-complementary

Open in tool →

#fbeff1 · #fbf9ef

#f9effb · #fbf3ef · #f1fbef

Contrast

#eff7fb as textRatioAAAA largeAAAFix
Aaon white
1.08:1failfailfail
  • AA: use #2a7da7 as the text (4.58:1)
  • AAA: use #205f7e as the text (7:1)
  • AA: or shift the background to #707070 (4.57:1)
  • AAA: or shift the background to #525252 (7.21:1)
Aaon black
19.37:1passpasspassPasses 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 #eff7fb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#eff7fb reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #eff7fb
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 #eff7fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eff7fb-9cb2c4-df4e64-1f232d-e9f1f0?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