Color

#64d3dd

#64d3dd
hex#64d3dd
rgbrgb(100, 211, 221)
hslhsl(185, 64%, 63%)
oklchoklch(0.806 0.102 203.3)
Closest name: Hidden Sea Glass (#6fd1c9)Relative luminance 0.5452

Colors that go with #64d3dd

Charcoal, Dark Salmon and Crimson 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 →

#dd6e64

#64ddab · #6497dd

#dd64d3 · #d3dd64

Split-complementary

Open in tool →

#dd6497 · #ddab64

#ab64dd · #dd6e64 · #97dd64

Contrast

#64d3dd as textRatioAAAA largeAAAFix
Aaon white
1.76:1failfailfail
  • AA: use #1e818a as the text (4.6:1)
  • AAA: use #176269 as the text (7.03:1)
  • AA: or shift the background to #4f4f4f (4.64:1)
  • AAA: or shift the background to #333333 (7.16:1)
Aaon black
11.9:1passpasspassPasses 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 #64d3dd as the background.

Brands using this color

Fonts for this mood

#64d3dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #64d3dd
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 #64d3dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/64d3dd-a2b8be-df4e88-1f262d-e9f1ee?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