Color

#2da6eb

#2da6eb
hex#2da6eb
rgbrgb(45, 166, 235)
hslhsl(202, 83%, 55%)
oklchoklch(0.692 0.144 239.7)
Closest name: Cerulean (#55aaee)Relative luminance 0.3383

Colors that go with #2da6eb

Charcoal, Medium Sea Green 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 →

#eb732d

#2debd2 · #2d46eb

#eb2da6 · #a6eb2d

Split-complementary

Open in tool →

#eb2d46 · #ebd22d

#d22deb · #eb732d · #46eb2d

Contrast

#2da6eb as textRatioAAAA largeAAAFix
Aaon white
2.7:1failfailfail
  • AA: use #1179b6 as the text (4.74:1)
  • AAA: use #0d5d8c as the text (7.09:1)
  • AA: or shift the background to #333333 (4.67:1)
  • AAA: or shift the background to #0f0f0f (7.09:1)
Aaon black
7.77:1passpasspassPasses 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 #2da6eb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2da6eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2da6eb
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 #2da6eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2da6eb-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