Color

#effaf3

#effaf3
hex#effaf3
rgbrgb(239, 250, 243)
hslhsl(142, 52%, 96%)
oklchoklch(0.975 0.015 158.3)
Closest name: Cold White (#edfcfb)Relative luminance 0.9319

Tints & shades

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

Harmonies

Complementary

Open in tool →

#faeff6

#f1faef · #effaf9

#f3effa · #faf3ef

Split-complementary

Open in tool →

#f9effa · #faeff1

#eff1fa · #faeff6 · #faf9ef

Contrast

#effaf3 as textRatioAAAA largeAAAFix
Aaon white
1.07:1failfailfail
  • AA: use #2a844b as the text (4.67:1)
  • AAA: use #206539 as the text (7.04:1)
  • AA: or shift the background to #707070 (4.63:1)
  • AAA: or shift the background to #545454 (7.08:1)
Aaon black
19.64:1passpasspassPasses 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 #effaf3 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#effaf3 reads as light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #effaf3
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 #effaf3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/effaf3-a2beaf-c659d4-1f2d2a-eaf1e9?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