Color

#b1acfb

#b1acfb
hex#b1acfb
rgbrgb(177, 172, 251)
hslhsl(244, 91%, 83%)
oklchoklch(0.778 0.112 286.4)
Closest name: Widowmaker (#99aaff)Relative luminance 0.4582

Colors that go with #b1acfb

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 →

#f6fbac

#accefb · #d9acfb

#fbb1ac · #acfbb1

Split-complementary

Open in tool →

#fbd9ac · #cefbac

#fbacce · #f6fbac · #acfbd9

Contrast

#b1acfb as textRatioAAAA largeAAAFix
Aaon white
2.07:1failfailfail
  • AA: use #685ef7 as the text (4.63:1)
  • AAA: use #3f32f5 as the text (7.03:1)
  • AA: or shift the background to #454545 (4.64:1)
  • AAA: or shift the background to #292929 (7.04:1)
Aaon black
10.16:1passpasspassPasses 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 #b1acfb as the background.

Brands using this color

Fonts for this mood

#b1acfb reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b1acfb
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 #b1acfb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b1acfb-a39cc4-dfa24e-261f2d-e9edf1?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