Color

#681fa8

#681fa8
hex#681fa8
rgbrgb(104, 31, 168)
hslhsl(272, 69%, 39%)
oklchoklch(0.433 0.2 302.5)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.0675

Colors that go with #681fa8

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 →

#5fa81f

#231fa8 · #a81fa3

#a8681f · #1fa868

Split-complementary

Open in tool →

#a3a81f · #1fa823

#a8231f · #5fa81f · #1fa3a8

Contrast

#681fa8 as textRatioAAAA largeAAAFix
Aaon white
8.94:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #9b4edf as the text (4.55:1)
  • AAA: use #b67ee7 as the text (7.13:1)
  • AA: or shift the background to #b8b8b8 (4.5:1)
  • AAA: or shift the background to #e6e6e6 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #681fa8 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

#681fa8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #681fa8
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 #681fa8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/681fa8-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