Color

#e4effb

#e4effb
hex#e4effb
rgbrgb(228, 239, 251)
hslhsl(211, 74%, 94%)
oklchoklch(0.947 0.02 250.4)
Closest name: Cotton Boll (#e7effb)Relative luminance 0.8519

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbf0e4

#e4fbfb · #e5e4fb

#fbe4ef · #effbe4

Split-complementary

Open in tool →

#fbe5e4 · #fbfbe4

#fbe4fb · #fbf0e4 · #e4fbe5

Contrast

#e4effb as textRatioAAAA largeAAAFix
Aaon white
1.16:1failfailfail
  • AA: use #2077d5 as the text (4.51:1)
  • AAA: use #17579b as the text (7.31:1)
  • AA: or shift the background to #6b6b6b (4.58:1)
  • AAA: or shift the background to #4f4f4f (7.04:1)
Aaon black
18.04:1passpasspassPasses 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 #e4effb as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#e4effb reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e4effb
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 #e4effb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e4effb-9cabc4-df534e-1f202d-e9f1f1?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