Color

#b1a3ff

#b1a3ff
hex#b1a3ff
rgbrgb(177, 163, 255)
hslhsl(249, 100%, 82%)
oklchoklch(0.763 0.13 289.9)
Closest name: Widowmaker (#99aaff)Relative luminance 0.4276

Colors that go with #b1a3ff

Deep Sky Blue, Dark Khaki 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 →

#f1ffa3

#a3c3ff · #dfa3ff

#ffb1a3 · #a3ffb1

Split-complementary

Open in tool →

#ffdfa3 · #c3ffa3

#ffa3c3 · #f1ffa3 · #a3ffdf

Contrast

#b1a3ff as textRatioAAAA largeAAAFix
Aaon white
2.2:1failfailfail
  • AA: use #7057ff as the text (4.67:1)
  • AAA: use #4524ff as the text (7.12:1)
  • AA: or shift the background to #424242 (4.57:1)
  • AAA: or shift the background to #242424 (7.06:1)
Aaon black
9.55:1passpasspassPasses 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 #b1a3ff as the background.

Brands using this color

Fonts for this mood

#b1a3ff reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b1a3ff
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 #b1a3ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b1a3ff-a79cc4-dfae4e-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