Color

#eff4f6

#eff4f6
hex#eff4f6
rgbrgb(239, 244, 246)
hslhsl(197, 28%, 95%)
oklchoklch(0.964 0.006 223.5)
Closest name: Anti-Flash White (#f2f3f4)Relative luminance 0.8971

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f6f1ef

#eff6f4 · #eff0f6

#f6eff4 · #f4f6ef

Split-complementary

Open in tool →

#f6eff0 · #f6f4ef

#f4eff6 · #f6f1ef · #f0f6ef

Contrast

#eff4f6 as textRatioAAAA largeAAAFix
Aaon white
1.11:1failfailfail
  • AA: use #4f7b8c as the text (4.62:1)
  • AAA: use #3b5c68 as the text (7.2:1)
  • AA: or shift the background to #6e6e6e (4.6:1)
  • AAA: or shift the background to #525252 (7.05:1)
Aaon black
18.94:1passpasspassPasses 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 #eff4f6 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#eff4f6 reads as cool, muted, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #eff4f6
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 #eff4f6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eff4f6-9cb4c4-df4e6b-1f232d-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