Color

#6587e7

#6587e7
hex#6587e7
rgbrgb(101, 135, 231)
hslhsl(224, 73%, 65%)
oklchoklch(0.643 0.149 267.4)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2586

Colors that go with #6587e7

Charcoal, Medium Sea Green and Orange Red 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 →

#e7c465

#65c8e7 · #8365e7

#e76587 · #87e765

Split-complementary

Open in tool →

#e78365 · #c8e765

#e765c8 · #e7c465 · #65e783

Contrast

#6587e7 as textRatioAAAA largeAAAFix
Aaon white
3.4:1failpassfail
  • AA: use #466fe2 as the text (4.53:1)
  • AAA: use #204dcb as the text (7.03:1)
  • AA: or shift the background to #242424 (4.56:1)
Aaon black
6.17:1passpassfail

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6587e7 as the background.

Brands using this color

Fonts for this mood

#6587e7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6587e7
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 #6587e7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6587e7-9ca2c4-df724e-221f2d-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