Color

#613bde

#613bde
hex#613bde
rgbrgb(97, 59, 222)
hslhsl(254, 71%, 55%)
oklchoklch(0.503 0.23 285.3)
Closest name: Blurple (#5539cc)Relative luminance 0.1094

Colors that go with #613bde

Slate Gray, Olive Green and Charcoal 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.

Real palettes that use #613bde

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b8de3b

#3b66de · #b23bde

#de613b · #3bde61

Split-complementary

Open in tool →

#deb23b · #66de3b

#de3b66 · #b8de3b · #3bdeb2

Contrast

#613bde as textRatioAAAA largeAAAFix
Aaon white
6.59:1passpassfail
  • AAA: use #5a32dc as the text (7.18:1)
Aaon black
3.19:1failpassfail
  • AA: use #7d5ee4 as the text (4.59:1)
  • AAA: use #a089eb as the text (7.27:1)
  • AA: or shift the background to #d6d6d6 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #613bde 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

#613bde reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

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

tool url/palettes/new/613bde-aa9cc4-dfbb4e-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