Color

#8173ab

#8173ab
hex#8173ab
rgbrgb(129, 115, 171)
hslhsl(255, 25%, 56%)
oklchoklch(0.59 0.085 295.1)
Closest name: Aster (#867ba9)Relative luminance 0.1987

Colors that go with #8173ab

Charcoal, Cobalt Blue and Crimson 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 →

#9dab73

#7381ab · #9d73ab

#ab8173 · #73ab81

Split-complementary

Open in tool →

#ab9d73 · #81ab73

#ab7381 · #9dab73 · #73ab9d

Contrast

#8173ab as textRatioAAAA largeAAAFix
Aaon white
4.22:1failpassfail
  • AA: use #7b6ca7 as the text (4.62:1)
  • AAA: use #5e5086 as the text (7.08:1)
  • AA: or shift the background to #0f0f0f (4.54:1)
Aaon black
4.97:1passpassfail
  • AAA: use #9b8fbc as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #8173ab as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #8173ab
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 #8173ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/8173ab-ab9cc4-dfbd4e-291f2d-e9ebf1?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