Color

#284dbd

#284dbd
hex#284dbd
rgbrgb(40, 77, 189)
hslhsl(225, 65%, 45%)
oklchoklch(0.466 0.181 265.6)
Closest name: Denim (#2243b6)Relative luminance 0.0943

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bd9828

#2898bd · #4d28bd

#bd284d · #4dbd28

Split-complementary

Open in tool →

#bd4d28 · #98bd28

#bd2898 · #bd9828 · #28bd4d

Contrast

#284dbd as textRatioAAAA largeAAAFix
Aaon white
7.27:1passpasspassPasses AAA — no fix needed.
Aaon black
2.89:1failfailfail
  • AA: use #4a6ed9 as the text (4.52:1)
  • AAA: use #7893e2 as the text (7.07:1)
  • AA: or shift the background to #cccccc (4.53:1)
  • AAA: or shift the background to #fcfcfc (7.09:1)

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

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

mcpConnect your agent — build around #284dbd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #284dbd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/284dbd-9ca1c4-df754e-221f2d-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