Color

#6f5bb9

#6f5bb9
hex#6f5bb9
rgbrgb(111, 91, 185)
hslhsl(253, 40%, 54%)
oklchoklch(0.536 0.143 290.6)
Closest name: slateblue (#6a5acd)Relative luminance 0.1436

Colors that go with #6f5bb9

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 →

#a4b95b

#5b75b9 · #9e5bb9

#b96f5b · #5bb96f

Split-complementary

Open in tool →

#b99e5b · #75b95b

#b95b75 · #a4b95b · #5bb99e

Contrast

#6f5bb9 as textRatioAAAA largeAAAFix
Aaon white
5.42:1passpassfail
  • AAA: use #5d48a8 as the text (7.1:1)
Aaon black
3.87:1failpassfail
  • AA: use #7c69bf as the text (4.63:1)
  • AAA: use #9b8dce as the text (7.09:1)
  • AA: or shift the background to #ebebeb (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6f5bb9 as the background.

Brands using this color

Fonts for this mood

#6f5bb9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6f5bb9
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 #6f5bb9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6f5bb9-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