Color

#681aef

#681aef
hex#681aef
rgbrgb(104, 26, 239)
hslhsl(262, 87%, 52%)
oklchoklch(0.498 0.271 287.8)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0991

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a1ef1a

#1a37ef · #d31aef

#ef681a · #1aef68

Split-complementary

Open in tool →

#efd31a · #37ef1a

#ef1a37 · #a1ef1a · #1aefd3

Contrast

#681aef as textRatioAAAA largeAAAFix
Aaon white
7.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.98:1failfailfail
  • AA: use #8b4ff3 as the text (4.51:1)
  • AAA: use #aa7ef6 as the text (7.02:1)
  • AA: or shift the background to #cfcfcf (4.52:1)
  • AAA: or shift the background to #ffffff (7.04:1)

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

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

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

tool url/palettes/new/681aef-af9cc4-dfce4e-2a1f2d-e9eaf1?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