Color

#616cb3

#616cb3
hex#616cb3
rgbrgb(97, 108, 179)
hslhsl(232, 35%, 54%)
oklchoklch(0.554 0.111 275.5)
Closest name: Loch Ness (#5f6db0)Relative luminance 0.1652

Colors that go with #616cb3

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 →

#b3a861

#6195b3 · #7f61b3

#b3616c · #6cb361

Split-complementary

Open in tool →

#b37f61 · #95b361

#b36195 · #b3a861 · #61b37f

Contrast

#616cb3 as textRatioAAAA largeAAAFix
Aaon white
4.88:1passpassfail
  • AAA: use #495397 as the text (7.08:1)
Aaon black
4.3:1failpassfail
  • AA: use #6872b6 as the text (4.67:1)
  • AAA: use #8a92c7 as the text (7.02:1)
  • AA: or shift the background to #f7f7f7 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #616cb3 as the background.

Brands using this color

Fonts for this mood

#616cb3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #616cb3
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 #616cb3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/616cb3-9c9dc4-df864e-231f2d-e9eef1?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