Color

#66acc2

#66acc2
hex#66acc2
rgbrgb(102, 172, 194)
hslhsl(194, 43%, 58%)
oklchoklch(0.706 0.077 220.2)
Closest name: Frozen Wave (#56acca)Relative luminance 0.3622

Colors that go with #66acc2

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 →

#c27b66

#66c2a9 · #667ec2

#c266ac · #acc266

Split-complementary

Open in tool →

#c2667e · #c2a966

#a966c2 · #c27b66 · #7ec266

Contrast

#66acc2 as textRatioAAAA largeAAAFix
Aaon white
2.55:1failfailfail
  • AA: use #3a7d92 as the text (4.64:1)
  • AAA: use #2c5e6d as the text (7.17:1)
  • AA: or shift the background to #383838 (4.6:1)
  • AAA: or shift the background to #171717 (7.04:1)
Aaon black
8.24:1passpasspassPasses 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 #66acc2 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

#66acc2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #66acc2
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 #66acc2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66acc2-9cb6c4-df4e72-1f242d-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