Color

#20b5cf

#20b5cf
hex#20b5cf
rgbrgb(32, 181, 207)
hslhsl(189, 73%, 47%)
oklchoklch(0.712 0.12 213.4)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3786

Colors that go with #20b5cf

Charcoal, Denim and Dodger Blue 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 →

#cf3b20

#20cf92 · #205ecf

#cf20b5 · #b5cf20

Split-complementary

Open in tool →

#cf205e · #cf9220

#9220cf · #cf3b20 · #5ecf20

Contrast

#20b5cf as textRatioAAAA largeAAAFix
Aaon white
2.45:1failfailfail
  • AA: use #177f92 as the text (4.68:1)
  • AAA: use #11606e as the text (7.19:1)
  • AA: or shift the background to #3b3b3b (4.57:1)
  • AAA: or shift the background to #1a1a1a (7.1:1)
Aaon black
8.57:1passpasspassPasses 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 #20b5cf as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#20b5cf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #20b5cf
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 #20b5cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/20b5cf-a2b7be-df4e7e-1f252d-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