Color

#8181ef

#8181ef
hex#8181ef
rgbrgb(129, 129, 239)
hslhsl(240, 77%, 72%)
oklchoklch(0.654 0.161 281)
Closest name: Orchid (#7a81ff)Relative luminance 0.266

Colors that go with #8181ef

Amber, Blue and Charcoal 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 →

#efef81

#81b8ef · #b881ef

#ef8181 · #81ef81

Split-complementary

Open in tool →

#efb881 · #b8ef81

#ef81b8 · #efef81 · #81efb8

Contrast

#8181ef as textRatioAAAA largeAAAFix
Aaon white
3.32:1failpassfail
  • AA: use #6666eb as the text (4.5:1)
  • AAA: use #3838e5 as the text (7.33:1)
  • AA: or shift the background to #262626 (4.55:1)
Aaon black
6.32:1passpassfail
  • AAA: use #8e8ef0 as the text (7.28:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #8181ef 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

#8181ef reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #8181ef
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 #8181ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/8181ef-a19cc4-df994e-251f2d-e9edf1?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