Color

#5110ea

#5110ea
hex#5110ea
rgbrgb(81, 16, 234)
hslhsl(258, 87%, 49%)
oklchoklch(0.467 0.273 280.9)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0806

Colors that go with #5110ea

Charcoal, Cobalt Blue and Cornflower 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 →

#a8ea10

#103cea · #be10ea

#ea5110 · #10ea51

Split-complementary

Open in tool →

#eabe10 · #3cea10

#ea103c · #a8ea10 · #10eabe

Contrast

#5110ea as textRatioAAAA largeAAAFix
Aaon white
8.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.61:1failfailfail
  • AA: use #8758f3 as the text (4.72:1)
  • AAA: use #a683f6 as the text (7.2:1)
  • AA: or shift the background to #c2c2c2 (4.51:1)
  • AAA: or shift the background to #f0f0f0 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5110ea 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

#5110ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5110ea
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 #5110ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5110ea-ad9cc4-dfc44e-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