Color

#6a2b91

#6a2b91
hex#6a2b91
rgbrgb(106, 43, 145)
hslhsl(277, 54%, 37%)
oklchoklch(0.429 0.163 309.5)
Closest name: rebeccapurple (#663399)Relative luminance 0.0684

Colors that go with #6a2b91

Crimson, Denim and Tomato 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 →

#52912b

#372b91 · #912b85

#916a2b · #2b916a

Split-complementary

Open in tool →

#85912b · #2b9137

#91372b · #52912b · #2b8591

Contrast

#6a2b91 as textRatioAAAA largeAAAFix
Aaon white
8.87:1passpasspassPasses AAA — no fix needed.
Aaon black
2.37:1failfailfail
  • AA: use #9d52cb as the text (4.5:1)
  • AAA: use #b881d9 as the text (7.18:1)
  • AA: or shift the background to #bababa (4.57:1)
  • AAA: or shift the background to #e6e6e6 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6a2b91 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

#6a2b91 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6a2b91
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 #6a2b91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6a2b91-b99cc4-bdcb62-2d1f2c-eae9f1?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