Color

#b3ddf9

#b3ddf9
hex#b3ddf9
rgbrgb(179, 221, 249)
hslhsl(204, 85%, 84%)
oklchoklch(0.877 0.059 237.5)
Closest name: Broad Daylight (#bbddff)Relative luminance 0.6814

Colors that go with #b3ddf9

Charcoal, Goldenrod and Dark Orange 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 →

#f9cfb4

#b4f9f2 · #b4baf9

#f9b4dd · #ddf9b4

Split-complementary

Open in tool →

#f9b4ba · #f9f2b4

#f2b4f9 · #f9cfb4 · #baf9b4

Contrast

#b3ddf9 as textRatioAAAA largeAAAFix
Aaon white
1.44:1failfailfail
  • AA: use #107ac1 as the text (4.59:1)
  • AAA: use #0c5c92 as the text (7.09:1)
  • AA: or shift the background to #5e5e5e (4.52:1)
  • AAA: or shift the background to #404040 (7.22:1)
Aaon black
14.63:1passpasspassPasses 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 #b3ddf9 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#b3ddf9 reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b3ddf9
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 #b3ddf9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3ddf9-9cafc4-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