Color

#34aef4

#34aef4
hex#34aef4
rgbrgb(52, 174, 244)
hslhsl(202, 90%, 58%)
oklchoklch(0.716 0.145 239.4)
Closest name: Cerulean (#55aaee)Relative luminance 0.3753

Colors that go with #34aef4

Charcoal, Dark Orange 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 →

#f47a34

#34f4db · #344df4

#f434ae · #aef434

Split-complementary

Open in tool →

#f4344d · #f4db34

#db34f4 · #f47a34 · #4df434

Contrast

#34aef4 as textRatioAAAA largeAAAFix
Aaon white
2.47:1failfailfail
  • AA: use #0a7bbd as the text (4.58:1)
  • AAA: use #075c8d as the text (7.18:1)
  • AA: or shift the background to #3b3b3b (4.54:1)
  • AAA: or shift the background to #1a1a1a (7.05:1)
Aaon black
8.51:1passpasspassPasses 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 #34aef4 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#34aef4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #34aef4
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 #34aef4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/34aef4-9cb1c4-df4e5f-1f222d-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