Color

#f5fbff

#f5fbff
hex#f5fbff
rgbrgb(245, 251, 255)
hslhsl(204, 100%, 98%)
oklchoklch(0.985 0.008 236.6)
Closest name: ghostwhite (#f8f8ff)Relative luminance 0.9563

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fff9f5

#f5fffe · #f5f6ff

#fff5fb · #fbfff5

Split-complementary

Open in tool →

#fff5f6 · #fffef5

#fef5ff · #fff9f5 · #f6fff5

Contrast

#f5fbff as textRatioAAAA largeAAAFix
Aaon white
1.04:1failfailfail
  • AA: use #007acc as the text (4.51:1)
  • AAA: use #005c99 as the text (7.02:1)
  • AA: or shift the background to #737373 (4.54:1)
  • AAA: or shift the background to #545454 (7.26:1)
Aaon black
20.13:1passpasspassPasses 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 #f5fbff as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#f5fbff reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f5fbff
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 #f5fbff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f5fbff-9cafc4-df4e5a-1f222d-e9f1f0?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