Color

#5406ef

#5406ef
hex#5406ef
rgbrgb(84, 6, 239)
hslhsl(260, 95%, 48%)
oklchoklch(0.471 0.28 281.5)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0825

Colors that go with #5406ef

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 →

#a1ef06

#062def · #c806ef

#ef5406 · #06ef54

Split-complementary

Open in tool →

#efc806 · #2def06

#ef062d · #a1ef06 · #06efc8

Contrast

#5406ef as textRatioAAAA largeAAAFix
Aaon white
7.93:1passpasspassPasses AAA — no fix needed.
Aaon black
2.65:1failfailfail
  • AA: use #8951fb as the text (4.63:1)
  • AAA: use #a87efc as the text (7.05:1)
  • AA: or shift the background to #c4c4c4 (4.54:1)
  • AAA: or shift the background to #f2f2f2 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5406ef 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

#5406ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5406ef
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 #5406ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5406ef-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