Color

#2d80b4

#2d80b4
hex#2d80b4
rgbrgb(45, 128, 180)
hslhsl(203, 60%, 44%)
oklchoklch(0.574 0.112 240.6)
Closest name: steelblue (#4682b4)Relative luminance 0.1929

Colors that go with #2d80b4

Charcoal, Crimson and Royal 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 →

#b4602d

#2db4a4 · #2d3db4

#b42d80 · #80b42d

Split-complementary

Open in tool →

#b42d3d · #b4a42d

#a42db4 · #b4602d · #3db42d

Contrast

#2d80b4 as textRatioAAAA largeAAAFix
Aaon white
4.32:1failpassfail
  • AA: use #2c7daf as the text (4.51:1)
  • AAA: use #215d83 as the text (7.1:1)
  • AA: or shift the background to #0a0a0a (4.58:1)
Aaon black
4.86:1passpassfail
  • AAA: use #4b9fd2 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d80b4 as the background.

Brands using this color

Fonts for this mood

#2d80b4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d80b4
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 #2d80b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d80b4-9cb0c4-df4e5d-1f222d-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