Color

#eff1f5

#eff1f5
hex#eff1f5
rgbrgb(239, 241, 245)
hslhsl(220, 23%, 95%)
oklchoklch(0.958 0.006 264.5)
Closest name: Errigal White (#f2f2f4)Relative luminance 0.8785

Colors that go with #eff1f5

Charcoal, Amber and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #eff1f5

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f5f3ef

#eff4f5 · #f0eff5

#f5eff1 · #f1f5ef

Split-complementary

Open in tool →

#f5f0ef · #f4f5ef

#f5eff4 · #f5f3ef · #eff5f0

Contrast

#eff1f5 as textRatioAAAA largeAAAFix
Aaon white
1.13:1failfailfail
  • AA: use #62769d as the text (4.57:1)
  • AAA: use #4b5977 as the text (7.01:1)
  • AA: or shift the background to #6e6e6e (4.51:1)
  • AAA: or shift the background to #4f4f4f (7.24:1)
Aaon black
18.57:1passpasspassPasses 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 #eff1f5 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#eff1f5 reads as cool, muted, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #eff1f5
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

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

analyze #eff1f5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eff1f5-9ca5c4-df694e-211f2d-e9f0f1?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