Color

#34d9ef

#34d9ef
hex#34d9ef
rgbrgb(52, 217, 239)
hslhsl(187, 85%, 57%)
oklchoklch(0.814 0.131 208.7)
Closest name: Hammam Blue (#65dcd6)Relative luminance 0.5659

Colors that go with #34d9ef

Charcoal, Dodger Blue and Taupe 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 →

#ef4a34

#34efa7 · #347cef

#ef34d9 · #d9ef34

Split-complementary

Open in tool →

#ef347c · #efa734

#a734ef · #ef4a34 · #7cef34

Contrast

#34d9ef as textRatioAAAA largeAAAFix
Aaon white
1.7:1failfailfail
  • AA: use #0b7e8e as the text (4.78:1)
  • AAA: use #09616d as the text (7.14:1)
  • AA: or shift the background to #525252 (4.58:1)
  • AAA: or shift the background to #363636 (7.09:1)
Aaon black
12.32:1passpasspassPasses 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 #34d9ef as the background.

Brands using this color

Fonts for this mood

#34d9ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #34d9ef
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 #34d9ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/34d9ef-a2b8be-df4e83-1f262d-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