Color

#2b80d4

#2b80d4
hex#2b80d4
rgbrgb(43, 128, 212)
hslhsl(210, 66%, 50%)
oklchoklch(0.592 0.151 251.9)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.2071

Colors that go with #2b80d4

Charcoal, Crimson and Copper 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 →

#d4802b

#2bd4d4 · #2b2bd4

#d42b80 · #80d42b

Split-complementary

Open in tool →

#d42b2b · #d4d42b

#d42bd4 · #d4802b · #2bd42b

Contrast

#2b80d4 as textRatioAAAA largeAAAFix
Aaon white
4.08:1failpassfail
  • AA: use #2978c7 as the text (4.56:1)
  • AAA: use #1e5994 as the text (7.21:1)
  • AA: or shift the background to #141414 (4.51:1)
Aaon black
5.14:1passpassfail
  • AAA: use #5a9cdd as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b80d4 as the background.

Brands using this color

Fonts for this mood

#2b80d4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b80d4
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 #2b80d4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b80d4-9cabc4-df514e-1f202d-e9f1f1?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