Color

#5b2bd4

#5b2bd4
hex#5b2bd4
rgbrgb(91, 43, 212)
hslhsl(257, 66%, 50%)
oklchoklch(0.471 0.234 286.2)
Closest name: Blurple (#5539cc)Relative luminance 0.0871

Colors that go with #5b2bd4

Charcoal, Royal Blue and Sea Green 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 →

#a4d42b

#2b50d4 · #af2bd4

#d45b2b · #2bd45b

Split-complementary

Open in tool →

#d4af2b · #50d42b

#d42b50 · #a4d42b · #2bd4af

Contrast

#5b2bd4 as textRatioAAAA largeAAAFix
Aaon white
7.66:1passpasspassPasses AAA — no fix needed.
Aaon black
2.74:1failfailfail
  • AA: use #825ede as the text (4.61:1)
  • AAA: use #a388e7 as the text (7.23:1)
  • AA: or shift the background to #c7c7c7 (4.53:1)
  • AAA: or shift the background to #f5f5f5 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b2bd4 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

#5b2bd4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b2bd4
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 #5b2bd4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b2bd4-ac9cc4-dfc24e-291f2d-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