Color

#2da9e6

#2da9e6
hex#2da9e6
rgbrgb(45, 169, 230)
hslhsl(200, 79%, 54%)
oklchoklch(0.696 0.136 235.9)
Closest name: Cerulean (#55aaee)Relative luminance 0.3465

Colors that go with #2da9e6

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 →

#e66b2d

#2de6c7 · #2d4ce6

#e62da9 · #a9e62d

Split-complementary

Open in tool →

#e62d4c · #e6c72d

#c72de6 · #e66b2d · #4ce62d

Contrast

#2da9e6 as textRatioAAAA largeAAAFix
Aaon white
2.65:1failfailfail
  • AA: use #157eb2 as the text (4.51:1)
  • AAA: use #105d84 as the text (7.19:1)
  • AA: or shift the background to #363636 (4.56:1)
  • AAA: or shift the background to #121212 (7.07:1)
Aaon black
7.93:1passpasspassPasses 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 #2da9e6 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2da9e6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2da9e6
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 #2da9e6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2da9e6-9cb2c4-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