Color

#550feb

#550feb
hex#550feb
rgbrgb(85, 15, 235)
hslhsl(259, 88%, 49%)
oklchoklch(0.471 0.273 282.1)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0827

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a5eb0f

#0f37eb · #c30feb

#eb550f · #0feb55

Split-complementary

Open in tool →

#ebc30f · #37eb0f

#eb0f37 · #a5eb0f · #0febc3

Contrast

#550feb as textRatioAAAA largeAAAFix
Aaon white
7.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.65:1failfailfail
  • AA: use #8652f4 as the text (4.53:1)
  • AAA: use #a782f7 as the text (7.18:1)
  • AA: or shift the background to #c4c4c4 (4.54:1)
  • AAA: or shift the background to #f2f2f2 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #550feb 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

#550feb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #550feb
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 #550feb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/550feb-ad9cc4-dfc74e-2a1f2d-e9ebf1?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