Color

#b3bbf9

#b3bbf9
hex#b3bbf9
rgbrgb(179, 187, 249)
hslhsl(233, 85%, 84%)
oklchoklch(0.808 0.088 278.5)
Closest name: Purple Illusion (#b8b8f8)Relative luminance 0.5196

Colors that go with #b3bbf9

Charcoal, Deep Sky Blue and Goldenrod 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 →

#f9f1b4

#b4def9 · #ceb4f9

#f9b4bc · #bcf9b4

Split-complementary

Open in tool →

#f9ceb4 · #def9b4

#f9b4de · #f9f1b4 · #b4f9ce

Contrast

#b3bbf9 as textRatioAAAA largeAAAFix
Aaon white
1.84:1failfailfail
  • AA: use #5567f1 as the text (4.57:1)
  • AAA: use #263ded as the text (7.06:1)
  • AA: or shift the background to #4d4d4d (4.59:1)
  • AAA: or shift the background to #303030 (7.16:1)
Aaon black
11.39:1passpasspassPasses 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 #b3bbf9 as the background.

Brands using this color

Fonts for this mood

#b3bbf9 reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b3bbf9
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 #b3bbf9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3bbf9-9c9cc4-df884e-241f2d-e9eef1?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