Color

#681e8a

#681e8a
hex#681e8a
rgbrgb(104, 30, 138)
hslhsl(281, 64%, 33%)
oklchoklch(0.407 0.171 312.4)
Closest name: Extraviolet (#661188)Relative luminance 0.0571

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#408a1e

#321e8a · #8a1e76

#8a681e · #1e8a68

Split-complementary

Open in tool →

#768a1e · #1e8a32

#8a321e · #408a1e · #1e768a

Contrast

#681e8a as textRatioAAAA largeAAAFix
Aaon white
9.81:1passpasspassPasses AAA — no fix needed.
Aaon black
2.14:1failfailfail
  • AA: use #a947d7 as the text (4.57:1)
  • AAA: use #c179e2 as the text (7.1:1)
  • AA: or shift the background to #b0b0b0 (4.52:1)
  • AAA: or shift the background to #dbdbdb (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #681e8a 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

#681e8a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #681e8a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #681e8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/681e8a-ba9fc1-b6cb62-2d1f2c-ebe9f1?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