Color

#680bcb

#680bcb
hex#680bcb
rgbrgb(104, 11, 203)
hslhsl(269, 90%, 42%)
oklchoklch(0.454 0.244 295)
Closest name: Blurple (#5539cc)Relative luminance 0.0749

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6ecb0b

#0b0ecb · #c80bcb

#cb680b · #0bcb68

Split-complementary

Open in tool →

#cbc80b · #0ecb0b

#cb0b0e · #6ecb0b · #0bcbc8

Contrast

#680bcb as textRatioAAAA largeAAAFix
Aaon white
8.4:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #9b47f5 as the text (4.61:1)
  • AAA: use #b87cf8 as the text (7.28:1)
  • AA: or shift the background to #bfbfbf (4.57:1)
  • AAA: or shift the background to #ebebeb (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #680bcb 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

#680bcb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #680bcb
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 #680bcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/680bcb-b49cc4-cbcb62-2c1f2d-e9e9f1?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