Color

#5b0df8

#5b0df8
hex#5b0df8
rgbrgb(91, 13, 248)
hslhsl(260, 94%, 51%)
oklchoklch(0.49 0.286 282.5)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0929

Colors that go with #5b0df8

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 →

#a9f80d

#0d34f8 · #d00df8

#f85b0d · #0df85b

Split-complementary

Open in tool →

#f8d00d · #34f80d

#f80d34 · #a9f80d · #0df8d0

Contrast

#5b0df8 as textRatioAAAA largeAAAFix
Aaon white
7.35:1passpasspassPasses AAA — no fix needed.
Aaon black
2.86:1failfailfail
  • AA: use #8a52fa as the text (4.67:1)
  • AAA: use #a87efb as the text (7.04:1)
  • AA: or shift the background to #cccccc (4.58:1)
  • AAA: or shift the background to #fafafa (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b0df8 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

#5b0df8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b0df8
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 #5b0df8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b0df8-ae9cc4-dfc94e-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