Color

#615cb7

#615cb7
hex#615cb7
rgbrgb(97, 92, 183)
hslhsl(243, 39%, 54%)
oklchoklch(0.525 0.139 283)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1361

Colors that go with #615cb7

Charcoal, Sea Green and Amber 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 →

#b3b75c

#5c85b7 · #8e5cb7

#b7615c · #5cb761

Split-complementary

Open in tool →

#b78e5c · #85b75c

#b75c85 · #b3b75c · #5cb78e

Contrast

#615cb7 as textRatioAAAA largeAAAFix
Aaon white
5.64:1passpassfail
  • AAA: use #514cae as the text (7.01:1)
Aaon black
3.72:1failpassfail
  • AA: use #726ebf as the text (4.7:1)
  • AAA: use #9491cf as the text (7.21:1)
  • AA: or shift the background to #e6e6e6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #615cb7 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

#615cb7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #615cb7
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 #615cb7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/615cb7-a39cc4-dfa04e-261f2d-e9edf1?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