Color

#815ccc

#815ccc
hex#815ccc
rgbrgb(129, 92, 204)
hslhsl(260, 52%, 58%)
oklchoklch(0.567 0.167 295.9)
Closest name: slateblue (#6a5acd)Relative luminance 0.1668

Colors that go with #815ccc

Charcoal, Sea Green 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 →

#a6cc5c

#5c6fcc · #b95ccc

#cc815c · #5ccc81

Split-complementary

Open in tool →

#ccb95c · #6fcc5c

#cc5c6f · #a6cc5c · #5cccb9

Contrast

#815ccc as textRatioAAAA largeAAAFix
Aaon white
4.84:1passpassfail
  • AAA: use #673cbe as the text (7.08:1)
Aaon black
4.34:1failpassfail
  • AA: use #8460cd as the text (4.54:1)
  • AAA: use #a287d9 as the text (7:1)
  • AA: or shift the background to #f7f7f7 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #815ccc as the background.

Brands using this color

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

Fonts for this mood

#815ccc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #815ccc
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 #815ccc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/815ccc-ae9cc4-dfc94e-2a1f2d-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