Color

#2aadef

#2aadef
hex#2aadef
rgbrgb(42, 173, 239)
hslhsl(200, 86%, 55%)
oklchoklch(0.71 0.144 237)
Closest name: Cerulean (#55aaee)Relative luminance 0.3661

Colors that go with #2aadef

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 →

#ef6b2a

#2aefce · #2a4aef

#ef2aad · #adef2a

Split-complementary

Open in tool →

#ef2a4a · #efce2a

#ce2aef · #ef6b2a · #4aef2a

Contrast

#2aadef as textRatioAAAA largeAAAFix
Aaon white
2.52:1failfailfail
  • AA: use #0e7db4 as the text (4.55:1)
  • AAA: use #0a5c85 as the text (7.29:1)
  • AA: or shift the background to #383838 (4.65:1)
  • AAA: or shift the background to #171717 (7.1:1)
Aaon black
8.32:1passpasspassPasses 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 #2aadef as the background.

Brands using this color

Palettes built around it

Fonts for this mood

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

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

tool url/palettes/new/2aadef-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