Color

#681bac

#681bac
hex#681bac
rgbrgb(104, 27, 172)
hslhsl(272, 73%, 39%)
oklchoklch(0.433 0.207 301.7)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0671

Colors that go with #681bac

Olive Green, Charcoal and Teal 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 →

#5fac1b

#201bac · #ac1ba7

#ac681b · #1bac68

Split-complementary

Open in tool →

#a7ac1b · #1bac20

#ac201b · #5fac1b · #1ba7ac

Contrast

#681bac as textRatioAAAA largeAAAFix
Aaon white
8.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #9c4ae3 as the text (4.5:1)
  • AAA: use #b67bea as the text (7.01:1)
  • AA: or shift the background to #b8b8b8 (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.19:1)

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

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

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

tool url/palettes/new/681bac-b69cc4-c5cb62-2d1f2d-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