Color

#287faf

#287faf
hex#287faf
rgbrgb(40, 127, 175)
hslhsl(201, 63%, 42%)
oklchoklch(0.568 0.109 237.8)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.1873

Colors that go with #287faf

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 →

#af5728

#28af9a · #283caf

#af287f · #7faf28

Split-complementary

Open in tool →

#af283c · #af9a28

#9a28af · #af5728 · #3caf28

Contrast

#287faf as textRatioAAAA largeAAAFix
Aaon white
4.43:1failpassfail
  • AA: use #277caa as the text (4.62:1)
  • AAA: use #1d5e81 as the text (7.07:1)
  • AA: or shift the background to #080808 (4.53:1)
Aaon black
4.75:1passpassfail
  • AAA: use #3c9ed3 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 #287faf as the background.

Brands using this color

Fonts for this mood

#287faf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #287faf
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 #287faf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287faf-9cb1c4-df4e62-1f222d-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