Color

#491bac

#491bac
hex#491bac
rgbrgb(73, 27, 172)
hslhsl(259, 73%, 39%)
oklchoklch(0.398 0.205 287.1)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0518

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7eac1b

#1b35ac · #911bac

#ac491b · #1bac49

Split-complementary

Open in tool →

#ac911b · #35ac1b

#ac1b35 · #7eac1b · #1bac91

Contrast

#491bac as textRatioAAAA largeAAAFix
Aaon white
10.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.04:1failfailfail
  • AA: use #875ce6 as the text (4.7:1)
  • AAA: use #a483ec as the text (7.04:1)
  • AA: or shift the background to #adadad (4.6:1)
  • AAA: or shift the background to #d6d6d6 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #491bac 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

#491bac reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #491bac
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 #491bac and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/491bac-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