Color

#0284ca

#0284ca
hex#0284ca
rgbrgb(2, 132, 202)
hslhsl(201, 98%, 40%)
oklchoklch(0.589 0.142 243.1)
Closest name: Haddock’s Sweater (#277aba)Relative luminance 0.2078

Colors that go with #0284ca

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 →

#ca4802

#02caac · #0220ca

#ca0284 · #84ca02

Split-complementary

Open in tool →

#ca0220 · #caac02

#ac02ca · #ca4802 · #20ca02

Contrast

#0284ca as textRatioAAAA largeAAAFix
Aaon white
4.07:1failpassfail
  • AA: use #027abb as the text (4.66:1)
  • AAA: use #015c8d as the text (7.2:1)
  • AA: or shift the background to #141414 (4.52:1)
Aaon black
5.16:1passpassfail
  • AAA: use #029ef2 as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0284ca as the background.

Brands using this color

Fonts for this mood

#0284ca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0284ca
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 #0284ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0284ca-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