Color

#34acdf

#34acdf
hex#34acdf
rgbrgb(52, 172, 223)
hslhsl(198, 73%, 54%)
oklchoklch(0.702 0.126 231.3)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3556

Colors that go with #34acdf

Charcoal, Amber and 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 →

#df6734

#34dfbd · #3456df

#df34ac · #acdf34

Split-complementary

Open in tool →

#df3456 · #dfbd34

#bd34df · #df6734 · #56df34

Contrast

#34acdf as textRatioAAAA largeAAAFix
Aaon white
2.59:1failfailfail
  • AA: use #1a7da8 as the text (4.62:1)
  • AAA: use #135c7c as the text (7.37:1)
  • AA: or shift the background to #383838 (4.53:1)
  • AAA: or shift the background to #141414 (7.12:1)
Aaon black
8.11:1passpasspassPasses 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 #34acdf as the background.

Brands using this color

Fonts for this mood

#34acdf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #34acdf
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 #34acdf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/34acdf-9cb3c4-df4e69-1f232d-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