Color

#681ba7

#681ba7
hex#681ba7
rgbrgb(104, 27, 167)
hslhsl(273, 72%, 38%)
oklchoklch(0.429 0.202 303.1)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0652

Colors that go with #681ba7

Olive Green, Charcoal 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 →

#5aa71b

#221ba7 · #a71ba0

#a7681b · #1ba768

Split-complementary

Open in tool →

#a0a71b · #1ba722

#a7221b · #5aa71b · #1ba0a7

Contrast

#681ba7 as textRatioAAAA largeAAAFix
Aaon white
9.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #9e4be2 as the text (4.56:1)
  • AAA: use #b87bea as the text (7.06:1)
  • AA: or shift the background to #b8b8b8 (4.6:1)
  • AAA: or shift the background to #e3e3e3 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #681ba7 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

#681ba7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #681ba7
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 #681ba7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/681ba7-b79cc4-c4cb62-2d1f2d-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