Color

#816cb2

#816cb2
hex#816cb2
rgbrgb(129, 108, 178)
hslhsl(258, 31%, 56%)
oklchoklch(0.58 0.107 296.7)
Closest name: Lavish Spending (#8469bc)Relative luminance 0.1861

Colors that go with #816cb2

Charcoal, Sea Green 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 →

#9db26c

#6c7ab2 · #a46cb2

#b2816c · #6cb281

Split-complementary

Open in tool →

#b2a46c · #7ab26c

#b26c7a · #9db26c · #6cb2a4

Contrast

#816cb2 as textRatioAAAA largeAAAFix
Aaon white
4.45:1failpassfail
  • AA: use #7e69b0 as the text (4.63:1)
  • AAA: use #604c90 as the text (7.16:1)
  • AA: or shift the background to #080808 (4.5:1)
Aaon black
4.72:1passpassfail
  • AAA: use #9e8dc3 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 #816cb2 as the background.

Brands using this color

mcpConnect your agent — build around #816cb2
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 #816cb2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/816cb2-ad9cc4-dfc44e-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