Color

#618de5

#618de5
hex#618de5
rgbrgb(97, 141, 229)
hslhsl(220, 72%, 64%)
oklchoklch(0.652 0.141 263)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2725

Colors that go with #618de5

Charcoal, Medium 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 →

#e5b961

#61cfe5 · #7761e5

#e5618d · #8de561

Split-complementary

Open in tool →

#e57761 · #cfe561

#e561cf · #e5b961 · #61e577

Contrast

#618de5 as textRatioAAAA largeAAAFix
Aaon white
3.26:1failpassfail
  • AA: use #3a71df as the text (4.56:1)
  • AAA: use #1e51b8 as the text (7.18:1)
  • AA: or shift the background to #262626 (4.65:1)
Aaon black
6.45:1passpassfail
  • AAA: use #6e97e7 as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #618de5 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

#618de5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #618de5
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 #618de5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/618de5-9ca5c4-df694e-211f2d-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