Color

#815cd6

#815cd6
hex#815cd6
rgbrgb(129, 92, 214)
hslhsl(258, 60%, 60%)
oklchoklch(0.574 0.18 294)
Closest name: slateblue (#6a5acd)Relative luminance 0.1718

Colors that go with #815cd6

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 →

#b1d65c

#5c74d6 · #be5cd6

#d6815c · #5cd681

Split-complementary

Open in tool →

#d6be5c · #74d65c

#d65c74 · #b1d65c · #5cd6be

Contrast

#815cd6 as textRatioAAAA largeAAAFix
Aaon white
4.73:1passpassfail
  • AAA: use #6437cd as the text (7.07:1)
Aaon black
4.44:1failpassfail
  • AA: use #8460d7 as the text (4.64:1)
  • AAA: use #a389e1 as the text (7.22:1)
  • AA: or shift the background to #fafafa (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #815cd6 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

#815cd6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #815cd6
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 #815cd6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/815cd6-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