Color

#5b199a

#5b199a
hex#5b199a
rgbrgb(91, 25, 154)
hslhsl(271, 72%, 35%)
oklchoklch(0.399 0.189 300.7)
Closest name: Intergalactic Settlement (#5b1e8b)Relative luminance 0.0525

Colors that go with #5b199a

Crimson, Olive Green and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#579a19

#1b199a · #9a1997

#9a5b19 · #199a5b

Split-complementary

Open in tool →

#979a19 · #199a1b

#9a1b19 · #579a19 · #19979a

Contrast

#5b199a as textRatioAAAA largeAAAFix
Aaon white
10.24:1passpasspassPasses AAA — no fix needed.
Aaon black
2.05:1failfailfail
  • AA: use #9b50e2 as the text (4.64:1)
  • AAA: use #b780ea as the text (7.29:1)
  • AA: or shift the background to #adadad (4.56:1)
  • AAA: or shift the background to #d6d6d6 (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 #5b199a 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

#5b199a reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b199a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #5b199a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b199a-b59cc4-c7cb62-2c1f2d-eae9f1?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