Color

#280df2

#280df2
hex#280df2
rgbrgb(40, 13, 242)
hslhsl(247, 90%, 50%)
oklchoklch(0.449 0.291 268.9)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0715

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d7f20d

#0d65f2 · #9a0df2

#f2280d · #0df228

Split-complementary

Open in tool →

#f29a0d · #65f20d

#f20d65 · #d7f20d · #0df29a

Contrast

#280df2 as textRatioAAAA largeAAAFix
Aaon white
8.64:1passpasspassPasses AAA — no fix needed.
Aaon black
2.43:1failfailfail
  • AA: use #715ff7 as the text (4.68:1)
  • AAA: use #9386f9 as the text (7.02:1)
  • AA: or shift the background to #bdbdbd (4.6:1)
  • AAA: or shift the background to #e8e8e8 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #280df2 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

#280df2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #280df2
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 #280df2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/280df2-a59cc4-dfaa4e-271f2d-e9ecf1?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