Color

#2ab0ef

#2ab0ef
hex#2ab0ef
rgbrgb(42, 176, 239)
hslhsl(199, 86%, 55%)
oklchoklch(0.717 0.142 235.3)
Closest name: Cerulean (#55aaee)Relative luminance 0.3777

Colors that go with #2ab0ef

Charcoal, Dark Orange and Midnight Blue 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.

Real palettes that use #2ab0ef

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#ef682a

#2aefcb · #2a4eef

#ef2ab0 · #b0ef2a

Split-complementary

Open in tool →

#ef2a4e · #efcb2a

#cb2aef · #ef682a · #4eef2a

Contrast

#2ab0ef as textRatioAAAA largeAAAFix
Aaon white
2.45:1failfailfail
  • AA: use #0d7caf as the text (4.65:1)
  • AAA: use #0a5e85 as the text (7.11:1)
  • AA: or shift the background to #3b3b3b (4.56:1)
  • AAA: or shift the background to #1a1a1a (7.09:1)
Aaon black
8.55:1passpasspassPasses 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 #2ab0ef as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2ab0ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2ab0ef
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 #2ab0ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2ab0ef-9cb3c4-df4e66-1f232d-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