Color

#613597

#613597
hex#613597
rgbrgb(97, 53, 151)
hslhsl(267, 48%, 40%)
oklchoklch(0.436 0.154 300.8)
Closest name: rebeccapurple (#663399)Relative luminance 0.0732

Colors that go with #613597

Charcoal, Denim and Midnight Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6b9735

#353a97 · #923597

#976135 · #359761

Split-complementary

Open in tool →

#979235 · #3a9735

#97353a · #6b9735 · #359792

Contrast

#613597 as textRatioAAAA largeAAAFix
Aaon white
8.52:1passpasspassPasses AAA — no fix needed.
Aaon black
2.46:1failfailfail
  • AA: use #8f60c7 as the text (4.67:1)
  • AAA: use #a986d5 as the text (7.06:1)
  • AA: or shift the background to #bdbdbd (4.54:1)
  • AAA: or shift the background to #ebebeb (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #613597 as the background.

Brands using this color

Fonts for this mood

#613597 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #613597
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #613597 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/613597-b39cc4-dfda4e-2c1f2d-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