Color

#43a8db

#43a8db
hex#43a8db
rgbrgb(67, 168, 219)
hslhsl(200, 68%, 56%)
oklchoklch(0.694 0.119 234.3)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3431

Colors that go with #43a8db

Charcoal, Peru 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 →

#db7543

#43dbc2 · #435cdb

#db43a8 · #a8db43

Split-complementary

Open in tool →

#db435c · #dbc243

#c243db · #db7543 · #5cdb43

Contrast

#43a8db as textRatioAAAA largeAAAFix
Aaon white
2.67:1failfailfail
  • AA: use #217dab as the text (4.58:1)
  • AAA: use #185e81 as the text (7.1:1)
  • AA: or shift the background to #363636 (4.52:1)
  • AAA: or shift the background to #121212 (7.01:1)
Aaon black
7.86:1passpasspassPasses 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 #43a8db as the background.

Brands using this color

Fonts for this mood

#43a8db reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #43a8db
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 #43a8db and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43a8db-9cb2c4-df4e64-1f232d-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