Color

#6490aa

#6490aa
hex#6490aa
rgbrgb(100, 144, 170)
hslhsl(202, 29%, 53%)
oklchoklch(0.631 0.062 235)
Closest name: Cavolo Nero (#72939e)Relative luminance 0.2556

Colors that go with #6490aa

Charcoal, Copper and Cobalt 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.

Real palettes that use #6490aa

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#aa7e64

#64aaa1 · #646eaa

#aa6490 · #90aa64

Split-complementary

Open in tool →

#aa646e · #aaa164

#a164aa · #aa7e64 · #6eaa64

Contrast

#6490aa as textRatioAAAA largeAAAFix
Aaon white
3.44:1failpassfail
  • AA: use #517c94 as the text (4.51:1)
  • AAA: use #3c5b6d as the text (7.22:1)
  • AA: or shift the background to #242424 (4.52:1)
Aaon black
6.11:1passpassfail
  • AAA: use #759cb3 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 #6490aa as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #6490aa
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 #6490aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6490aa-9cb1c4-df4e5f-1f222d-e9f1f0?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