Color

#64b3dd

#64b3dd
hex#64b3dd
rgbrgb(100, 179, 221)
hslhsl(201, 64%, 63%)
oklchoklch(0.733 0.099 233.6)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.4017

Colors that go with #64b3dd

Charcoal, Dark Salmon 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 →

#dd8f64

#64ddcb · #6476dd

#dd64b3 · #b3dd64

Split-complementary

Open in tool →

#dd6476 · #ddcb64

#cb64dd · #dd8f64 · #76dd64

Contrast

#64b3dd as textRatioAAAA largeAAAFix
Aaon white
2.32:1failfailfail
  • AA: use #267dab as the text (4.56:1)
  • AAA: use #1c5e82 as the text (7.06:1)
  • AA: or shift the background to #3d3d3d (4.67:1)
  • AAA: or shift the background to #1f1f1f (7.09:1)
Aaon black
9.03:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #64b3dd as the background.

Brands using this color

Fonts for this mood

#64b3dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #64b3dd
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 #64b3dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/64b3dd-9cb1c4-df4e62-1f222d-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