Color

#2bb0e9

#2bb0e9
hex#2bb0e9
rgbrgb(43, 176, 233)
hslhsl(198, 81%, 54%)
oklchoklch(0.714 0.136 232.7)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.3745

Colors that go with #2bb0e9

Charcoal, Amber and 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e9642b

#2be9c3 · #2b51e9

#e92bb0 · #b0e92b

Split-complementary

Open in tool →

#e92b51 · #e9c32b

#c32be9 · #e9642b · #51e92b

Contrast

#2bb0e9 as textRatioAAAA largeAAAFix
Aaon white
2.47:1failfailfail
  • AA: use #127dab as the text (4.62:1)
  • AAA: use #0e5f81 as the text (7.06:1)
  • AA: or shift the background to #3b3b3b (4.53:1)
  • AAA: or shift the background to #1a1a1a (7.04:1)
Aaon black
8.49:1passpasspassPasses 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 #2bb0e9 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2bb0e9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2bb0e9
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 #2bb0e9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2bb0e9-9cb3c4-df4e69-1f232d-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