Color

#2bb1da

#2bb1da
hex#2bb1da
rgbrgb(43, 177, 218)
hslhsl(194, 70%, 51%)
oklchoklch(0.709 0.123 224.1)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3702

Colors that go with #2bb1da

Charcoal, Amber and Dark Orange 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 #2bb1da

Tints & shades

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

Harmonies

Complementary

Open in tool →

#da532b

#2bdaab · #2b59da

#da2bb1 · #b1da2b

Split-complementary

Open in tool →

#da2b59 · #daab2b

#ab2bda · #da532b · #59da2b

Contrast

#2bb1da as textRatioAAAA largeAAAFix
Aaon white
2.5:1failfailfail
  • AA: use #1c7e9c as the text (4.65:1)
  • AAA: use #155f75 as the text (7.18:1)
  • AA: or shift the background to #383838 (4.69:1)
  • AAA: or shift the background to #171717 (7.17:1)
Aaon black
8.4:1passpasspassPasses 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 #2bb1da as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#2bb1da reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2bb1da
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 #2bb1da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2bb1da-9cb6c4-df4e72-1f242d-e9f1ef?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