Color

#284feb

#284feb
hex#284feb
rgbrgb(40, 79, 235)
hslhsl(228, 83%, 54%)
oklchoklch(0.511 0.237 266.3)
Closest name: C64 Blue (#003aff)Relative luminance 0.1204

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ebc428

#28b1eb · #6328eb

#eb284f · #4feb28

Split-complementary

Open in tool →

#eb6328 · #b1eb28

#eb28b1 · #ebc428 · #28eb63

Contrast

#284feb as textRatioAAAA largeAAAFix
Aaon white
6.16:1passpassfail
  • AAA: use #1640e9 as the text (7.13:1)
Aaon black
3.41:1failpassfail
  • AA: use #496aee as the text (4.58:1)
  • AAA: use #7890f2 as the text (7.07:1)
  • AA: or shift the background to #dedede (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 #284feb 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

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

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

tool url/palettes/new/284feb-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