Color

#2b90bf

#2b90bf
hex#2b90bf
rgbrgb(43, 144, 191)
hslhsl(199, 63%, 46%)
oklchoklch(0.618 0.114 233.6)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2422

Colors that go with #2b90bf

Charcoal, Amber and Cobalt 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 →

#bf5a2b

#2bbfa4 · #2b46bf

#bf2b90 · #90bf2b

Split-complementary

Open in tool →

#bf2b46 · #bfa42b

#a42bbf · #bf5a2b · #46bf2b

Contrast

#2b90bf as textRatioAAAA largeAAAFix
Aaon white
3.59:1failpassfail
  • AA: use #267ea6 as the text (4.55:1)
  • AAA: use #1c5e7d as the text (7.13:1)
  • AA: or shift the background to #1f1f1f (4.59:1)
Aaon black
5.84:1passpassfail
  • AAA: use #339fd1 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b90bf as the background.

Brands using this color

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

Fonts for this mood

#2b90bf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b90bf
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 #2b90bf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b90bf-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