Color

#2a9fb7

#2a9fb7
hex#2a9fb7
rgbrgb(42, 159, 183)
hslhsl(190, 63%, 44%)
oklchoklch(0.65 0.104 215.1)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2871

Colors that go with #2a9fb7

Charcoal, Orange Red 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.

Real palettes that use #2a9fb7

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b7412a

#2ab788 · #2a59b7

#b72a9f · #9fb72a

Split-complementary

Open in tool →

#b72a59 · #b7882a

#882ab7 · #b7412a · #59b72a

Contrast

#2a9fb7 as textRatioAAAA largeAAAFix
Aaon white
3.12:1failpassfail
  • AA: use #217f91 as the text (4.66:1)
  • AAA: use #195e6c as the text (7.35:1)
  • AA: or shift the background to #2b2b2b (4.55:1)
Aaon black
6.74:1passpassfail
  • AAA: use #2aa3bb as the text (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a9fb7 as the background.

Brands using this color

Fonts for this mood

#2a9fb7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a9fb7
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 #2a9fb7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a9fb7-a2b6be-df4e7c-1f252d-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