Color

#eff4fa

#eff4fa
hex#eff4fa
rgbrgb(239, 244, 250)
hslhsl(213, 52%, 96%)
oklchoklch(0.965 0.01 252.8)
Closest name: Anti-Flash White (#f2f3f4)Relative luminance 0.8995

Tints & shades

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

Harmonies

Complementary

Open in tool →

#faf5ef

#effafa · #f0effa

#faeff4 · #f4faef

Split-complementary

Open in tool →

#faf0ef · #fafaef

#faeffa · #faf5ef · #effaf0

Contrast

#eff4fa as textRatioAAAA largeAAAFix
Aaon white
1.11:1failfailfail
  • AA: use #3c76be as the text (4.64:1)
  • AAA: use #2d598f as the text (7.15:1)
  • AA: or shift the background to #6e6e6e (4.61:1)
  • AAA: or shift the background to #525252 (7.07:1)
Aaon black
18.99:1passpasspassPasses 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 #eff4fa as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#eff4fa reads as cool, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #eff4fa
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 #eff4fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eff4fa-9ca9c4-df584e-1f202d-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