Color

#618ed6

#618ed6
hex#618ed6
rgbrgb(97, 142, 214)
hslhsl(217, 59%, 61%)
oklchoklch(0.646 0.119 259.5)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2674

Colors that go with #618ed6

Charcoal, Amber and Blue 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 →

#d6a961

#61c9d6 · #6f61d6

#d6618e · #8ed661

Split-complementary

Open in tool →

#d66f61 · #c9d661

#d661c9 · #d6a961 · #61d66f

Contrast

#618ed6 as textRatioAAAA largeAAAFix
Aaon white
3.31:1failpassfail
  • AA: use #3c74cd as the text (4.59:1)
  • AAA: use #29569e as the text (7.19:1)
  • AA: or shift the background to #262626 (4.57:1)
Aaon black
6.35:1passpassfail
  • AAA: use #6d97d9 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #618ed6 as the background.

Brands using this color

Fonts for this mood

#618ed6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #618ed6
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 #618ed6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/618ed6-9ca7c4-df624e-201f2d-e9f0f1?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