Color

#6487d3

#6487d3
hex#6487d3
rgbrgb(100, 135, 211)
hslhsl(221, 56%, 61%)
oklchoklch(0.631 0.122 264.4)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2474

Colors that go with #6487d3

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 →

#d3b064

#64bfd3 · #7864d3

#d36487 · #87d364

Split-complementary

Open in tool →

#d37864 · #bfd364

#d364bf · #d3b064 · #64d378

Contrast

#6487d3 as textRatioAAAA largeAAAFix
Aaon white
3.53:1failpassfail
  • AA: use #4872cb as the text (4.62:1)
  • AAA: use #2f55a7 as the text (7.05:1)
  • AA: or shift the background to #212121 (4.56:1)
Aaon black
5.95:1passpassfail
  • AAA: use #7896d9 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6487d3 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

#6487d3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6487d3
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 #6487d3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6487d3-9ca4c4-df6b4e-211f2d-e9eff1?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