Color

#618dbd

#618dbd
hex#618dbd
rgbrgb(97, 141, 189)
hslhsl(211, 41%, 56%)
oklchoklch(0.631 0.087 251.4)
Closest name: Canadian Tuxedo (#579aca)Relative luminance 0.2527

Colors that go with #618dbd

Charcoal, Copper 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 →

#bd9061

#61bbbd · #6261bd

#bd618d · #8dbd61

Split-complementary

Open in tool →

#bd6261 · #bbbd61

#bd61bb · #bd9061 · #61bd62

Contrast

#618dbd as textRatioAAAA largeAAAFix
Aaon white
3.47:1failpassfail
  • AA: use #4879ad as the text (4.55:1)
  • AAA: use #365b81 as the text (7.07:1)
  • AA: or shift the background to #212121 (4.64:1)
Aaon black
6.05:1passpassfail
  • AAA: use #739ac4 as the text (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 #618dbd 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

#618dbd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #618dbd
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 #618dbd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/618dbd-9cabc4-df534e-1f202d-e9f1f1?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