Color

#613f8d

#613f8d
hex#613f8d
rgbrgb(97, 63, 141)
hslhsl(266, 38%, 40%)
oklchoklch(0.445 0.126 301.6)
Closest name: Lords of the Night (#664488)Relative luminance 0.0802

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6b8d3f

#3f448d · #883f8d

#8d613f · #3f8d61

Split-complementary

Open in tool →

#8d883f · #448d3f

#8d3f44 · #6b8d3f · #3f8d88

Contrast

#613f8d as textRatioAAAA largeAAAFix
Aaon white
8.06:1passpasspassPasses AAA — no fix needed.
Aaon black
2.6:1failfailfail
  • AA: use #8964b9 as the text (4.59:1)
  • AAA: use #a78bcb as the text (7.2:1)
  • AA: or shift the background to #c2c2c2 (4.53:1)
  • AAA: or shift the background to #f0f0f0 (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 #613f8d 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

#613f8d reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #613f8d
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 #613f8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/613f8d-b29cc4-dfd74e-2b1f2d-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