Color

#b1a9ff

#b1a9ff
hex#b1a9ff
rgbrgb(177, 169, 255)
hslhsl(246, 100%, 83%)
oklchoklch(0.774 0.122 287.5)
Closest name: Widowmaker (#99aaff)Relative luminance 0.4494

Colors that go with #b1a9ff

Charcoal, Deep Sky Blue and Dark Khaki 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 →

#f6ffa8

#a8cbff · #dca8ff

#ffb1a8 · #a8ffb1

Split-complementary

Open in tool →

#ffdca8 · #cbffa8

#ffa8cb · #f6ffa8 · #a8ffdc

Contrast

#b1a9ff as textRatioAAAA largeAAAFix
Aaon white
2.1:1failfailfail
  • AA: use #6c5cff as the text (4.55:1)
  • AAA: use #3e29ff as the text (7.08:1)
  • AA: or shift the background to #454545 (4.56:1)
  • AAA: or shift the background to #262626 (7.2:1)
Aaon black
9.99:1passpasspassPasses 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 #b1a9ff as the background.

Brands using this color

Fonts for this mood

#b1a9ff reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b1a9ff
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 #b1a9ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b1a9ff-a59cc4-dfa74e-271f2d-e9ecf1?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