Color

#284ad2

#284ad2
hex#284ad2
rgbrgb(40, 74, 210)
hslhsl(228, 68%, 49%)
oklchoklch(0.479 0.212 266.7)
Closest name: Blurple (#5539cc)Relative luminance 0.1

Colors that go with #284ad2

Charcoal, Sea Green and Amber 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.

Real palettes that use #284ad2

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#d2b028

#289fd2 · #5b28d2

#d2284a · #4ad228

Split-complementary

Open in tool →

#d25b28 · #9fd228

#d2289f · #d2b028 · #28d25b

Contrast

#284ad2 as textRatioAAAA largeAAAFix
Aaon white
7:1passpassfail
  • AAA: use #2748ce as the text (7.23:1)
Aaon black
3:1failpassfail
  • AA: use #4f6cde as the text (4.53:1)
  • AAA: use #7e93e7 as the text (7.21:1)
  • AA: or shift the background to #d1d1d1 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #284ad2 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#284ad2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #284ad2
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 #284ad2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/284ad2-9c9fc4-df7c4e-231f2d-e9eff1?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