Color

#683bc9

#683bc9
hex#683bc9
rgbrgb(104, 59, 201)
hslhsl(259, 57%, 51%)
oklchoklch(0.491 0.206 291.5)
Closest name: Blurple (#5539cc)Relative luminance 0.1029

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9cc93b

#3b55c9 · #af3bc9

#c9683b · #3bc968

Split-complementary

Open in tool →

#c9af3b · #55c93b

#c93b55 · #9cc93b · #3bc9af

Contrast

#683bc9 as textRatioAAAA largeAAAFix
Aaon white
6.87:1passpassfail
  • AAA: use #6537c8 as the text (7.16:1)
Aaon black
3.06:1failpassfail
  • AA: use #845fd3 as the text (4.56:1)
  • AAA: use #a387de as the text (7.08:1)
  • AA: or shift the background to #d4d4d4 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #683bc9 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

#683bc9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #683bc9
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 #683bc9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/683bc9-ad9cc4-dfc74e-2a1f2d-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