Color

#818bda

#818bda
hex#818bda
rgbrgb(129, 139, 218)
hslhsl(233, 55%, 68%)
oklchoklch(0.662 0.118 277.2)
Closest name: Perrywinkle (#8f8ce7)Relative luminance 0.2819

Colors that go with #818bda

Charcoal, Medium Sea Green and Amber 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 →

#dad081

#81b8da · #a381da

#da818b · #8bda81

Split-complementary

Open in tool →

#daa381 · #b8da81

#da81b8 · #dad081 · #81daa3

Contrast

#818bda as textRatioAAAA largeAAAFix
Aaon white
3.16:1failpassfail
  • AA: use #616ed1 as the text (4.51:1)
  • AAA: use #394ac6 as the text (7.07:1)
  • AA: or shift the background to #292929 (4.6:1)
Aaon black
6.64:1passpassfail
  • AAA: use #8892dd as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #818bda 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

#818bda reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #818bda
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 #818bda and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/818bda-9c9cc4-df884e-241f2d-e9eef1?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