Color

#287be2

#287be2
hex#287be2
rgbrgb(40, 123, 226)
hslhsl(213, 76%, 52%)
oklchoklch(0.589 0.175 256.2)
Closest name: Blue Öyster Cult (#5577ee)Relative luminance 0.2011

Colors that go with #287be2

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 →

#e28e28

#28d8e2 · #3128e2

#e2287b · #7be228

Split-complementary

Open in tool →

#e23128 · #d8e228

#e228d8 · #e28e28 · #28e231

Contrast

#287be2 as textRatioAAAA largeAAAFix
Aaon white
4.18:1failpassfail
  • AA: use #1e73dc as the text (4.62:1)
  • AAA: use #1757a6 as the text (7.12:1)
  • AA: or shift the background to #0f0f0f (4.58:1)
Aaon black
5.02:1passpassfail
  • AAA: use #5999e8 as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #287be2 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

#287be2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #287be2
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 #287be2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287be2-9ca9c4-df584e-1f202d-e9f0f1?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