Color

#683fcf

#683fcf
hex#683fcf
rgbrgb(104, 63, 207)
hslhsl(257, 60%, 53%)
oklchoklch(0.502 0.208 289.8)
Closest name: Hokkaido Lavender (#7736d9)Relative luminance 0.11

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a6cf3f

#3f5ecf · #b03fcf

#cf683f · #3fcf68

Split-complementary

Open in tool →

#cfb03f · #5ecf3f

#cf3f5e · #a6cf3f · #3fcfb0

Contrast

#683fcf as textRatioAAAA largeAAAFix
Aaon white
6.56:1passpassfail
  • AAA: use #6237cd as the text (7.13:1)
Aaon black
3.2:1failpassfail
  • AA: use #8260d7 as the text (4.6:1)
  • AAA: use #a289e1 as the text (7.2:1)
  • AA: or shift the background to #d6d6d6 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #683fcf 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

#683fcf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #683fcf
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 #683fcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/683fcf-ac9cc4-dfc24e-291f2d-e9ebf1?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