Color

#615ca3

#615ca3
hex#615ca3
rgbrgb(97, 92, 163)
hslhsl(244, 28%, 50%)
oklchoklch(0.512 0.11 285)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1284

Colors that go with #615ca3

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.

Real palettes that use #615ca3

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9ea35c

#5c7ba3 · #845ca3

#a3615c · #5ca361

Split-complementary

Open in tool →

#a3845c · #7ba35c

#a35c7b · #9ea35c · #5ca384

Contrast

#615ca3 as textRatioAAAA largeAAAFix
Aaon white
5.89:1passpassfail
  • AAA: use #555190 as the text (7.08:1)
Aaon black
3.57:1failpassfail
  • AA: use #746fae as the text (4.63:1)
  • AAA: use #9693c2 as the text (7.25:1)
  • AA: or shift the background to #e3e3e3 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #615ca3 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #615ca3
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 #615ca3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/615ca3-a39cc4-dfa24e-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