Color

#4711bb

#4711bb
hex#4711bb
rgbrgb(71, 17, 187)
hslhsl(259, 83%, 40%)
oklchoklch(0.405 0.227 284)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0533

Tints & shades

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

Harmonies

Complementary

Open in tool →

#85bb11

#1130bb · #9c11bb

#bb4711 · #11bb47

Split-complementary

Open in tool →

#bb9c11 · #30bb11

#bb1130 · #85bb11 · #11bb9c

Contrast

#4711bb as textRatioAAAA largeAAAFix
Aaon white
10.17:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #8757ef as the text (4.64:1)
  • AAA: use #a581f3 as the text (7.03:1)
  • AA: or shift the background to #adadad (4.53:1)
  • AAA: or shift the background to #d9d9d9 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4711bb 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

#4711bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4711bb
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 #4711bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4711bb-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