Color

#64bbdd

#64bbdd
hex#64bbdd
rgbrgb(100, 187, 221)
hslhsl(197, 64%, 63%)
oklchoklch(0.751 0.097 225.8)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.4347

Colors that go with #64bbdd

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 →

#dd8664

#64ddc3 · #647edd

#dd64bb · #bbdd64

Split-complementary

Open in tool →

#dd647e · #ddc364

#c364dd · #dd8664 · #7edd64

Contrast

#64bbdd as textRatioAAAA largeAAAFix
Aaon white
2.17:1failfailfail
  • AA: use #247fa3 as the text (4.53:1)
  • AAA: use #1b5e79 as the text (7.18:1)
  • AA: or shift the background to #424242 (4.64:1)
  • AAA: or shift the background to #242424 (7.17:1)
Aaon black
9.69:1passpasspassPasses 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 #64bbdd 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

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

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

tool url/palettes/new/64bbdd-9cb4c4-df4e6b-1f232d-e9f1ef?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