Color

#5a04fb

#5a04fb
hex#5a04fb
rgbrgb(90, 4, 251)
hslhsl(261, 97%, 50%)
oklchoklch(0.49 0.291 281.9)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0923

Colors that go with #5a04fb

Charcoal, Denim and Cobalt Blue 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 →

#a5fb04

#0429fb · #d604fb

#fb5a04 · #04fb5a

Split-complementary

Open in tool →

#fbd604 · #29fb04

#fb0429 · #a5fb04 · #04fbd6

Contrast

#5a04fb as textRatioAAAA largeAAAFix
Aaon white
7.38:1passpasspassPasses AAA — no fix needed.
Aaon black
2.85:1failfailfail
  • AA: use #8c4ffc as the text (4.64:1)
  • AAA: use #ad81fd as the text (7.34:1)
  • AA: or shift the background to #cccccc (4.6:1)
  • AAA: or shift the background to #fafafa (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a04fb 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

#5a04fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a04fb
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 #5a04fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a04fb-af9cc4-dfcb4e-2a1f2d-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