Color

#5b02cf

#5b02cf
hex#5b02cf
rgbrgb(91, 2, 207)
hslhsl(266, 98%, 41%)
oklchoklch(0.441 0.25 289.2)
Closest name: Blurple (#5539cc)Relative luminance 0.0677

Colors that go with #5b02cf

Charcoal, Royal Blue and Denim 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 →

#76cf02

#0210cf · #c102cf

#cf5b02 · #02cf5b

Split-complementary

Open in tool →

#cfc102 · #10cf02

#cf0210 · #76cf02 · #02cfc1

Contrast

#5b02cf as textRatioAAAA largeAAAFix
Aaon white
8.92:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #9444fd as the text (4.5:1)
  • AAA: use #b47cfe as the text (7.25:1)
  • AA: or shift the background to #bababa (4.6:1)
  • AAA: or shift the background to #e6e6e6 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b02cf as the background.

Brands using this color

Fonts for this mood

#5b02cf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b02cf
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 #5b02cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b02cf-b29cc4-dfd74e-2b1f2d-e9eaf1?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