Color

#b9d3ef

#b9d3ef
hex#b9d3ef
rgbrgb(185, 211, 239)
hslhsl(211, 63%, 83%)
oklchoklch(0.857 0.048 250.3)
Closest name: Ariel (#aed7ea)Relative luminance 0.6313

Colors that go with #b9d3ef

Charcoal, Sandy Brown and Amber 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efd5b8

#b8eeef · #b9b8ef

#efb8d3 · #d3efb8

Split-complementary

Open in tool →

#efb9b8 · #eeefb8

#efb8ee · #efd5b8 · #b8efb9

Contrast

#b9d3ef as textRatioAAAA largeAAAFix
Aaon white
1.54:1failfailfail
  • AA: use #2d78c8 as the text (4.53:1)
  • AAA: use #225a96 as the text (7.07:1)
  • AA: or shift the background to #595959 (4.55:1)
  • AAA: or shift the background to #3d3d3d (7.05:1)
Aaon black
13.63:1passpasspassPasses 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 #b9d3ef as the background.

Brands using this color

Fonts for this mood

#b9d3ef reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b9d3ef
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 #b9d3ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b9d3ef-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