Color

#2a7acf

#2a7acf
hex#2a7acf
rgbrgb(42, 122, 207)
hslhsl(211, 66%, 49%)
oklchoklch(0.575 0.151 253.2)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1892

Colors that go with #2a7acf

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 →

#cf802a

#2acdcf · #2d2acf

#cf2a7a · #7acf2a

Split-complementary

Open in tool →

#cf2d2a · #cdcf2a

#cf2acd · #cf802a · #2acf2d

Contrast

#2a7acf as textRatioAAAA largeAAAFix
Aaon white
4.39:1failpassfail
  • AA: use #2a78cb as the text (4.52:1)
  • AAA: use #1f5a98 as the text (7.06:1)
  • AA: or shift the background to #0a0a0a (4.51:1)
Aaon black
4.78:1passpassfail
  • AAA: use #5a99dd as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a7acf as the background.

Brands using this color

Fonts for this mood

#2a7acf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a7acf
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 #2a7acf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a7acf-9cabc4-df534e-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