Color

#6490d3

#6490d3
hex#6490d3
rgbrgb(100, 144, 211)
hslhsl(216, 56%, 61%)
oklchoklch(0.65 0.112 258.6)
Closest name: Blue Bay (#619ad6)Relative luminance 0.2736

Colors that go with #6490d3

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 →

#d3a764

#64c8d3 · #6f64d3

#d36490 · #90d364

Split-complementary

Open in tool →

#d36f64 · #c8d364

#d364c8 · #d3a764 · #64d36f

Contrast

#6490d3 as textRatioAAAA largeAAAFix
Aaon white
3.24:1failpassfail
  • AA: use #3c74c8 as the text (4.64:1)
  • AAA: use #2c589b as the text (7.06:1)
  • AA: or shift the background to #262626 (4.66:1)
Aaon black
6.47:1passpassfail
  • AAA: use #7099d7 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6490d3 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

#6490d3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6490d3
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 #6490d3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6490d3-9ca7c4-df5f4e-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