Color

#6f54cf

#6f54cf
hex#6f54cf
rgbrgb(111, 84, 207)
hslhsl(253, 56%, 57%)
oklchoklch(0.539 0.182 288.9)
Closest name: slateblue (#6a5acd)Relative luminance 0.1423

Colors that go with #6f54cf

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 →

#b4cf54

#5477cf · #ac54cf

#cf6f54 · #54cf6f

Split-complementary

Open in tool →

#cfac54 · #77cf54

#cf5477 · #b4cf54 · #54cfac

Contrast

#6f54cf as textRatioAAAA largeAAAFix
Aaon white
5.46:1passpassfail
  • AAA: use #5a3cc8 as the text (7.2:1)
Aaon black
3.85:1failpassfail
  • AA: use #7c64d3 as the text (4.62:1)
  • AAA: use #9e8cde as the text (7.26:1)
  • AA: or shift the background to #ebebeb (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6f54cf 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

#6f54cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6f54cf
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 #6f54cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6f54cf-a99cc4-dfb84e-281f2d-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