Color

#818ea2

#818ea2
hex#818ea2
rgbrgb(129, 142, 162)
hslhsl(216, 15%, 57%)
oklchoklch(0.643 0.034 258.9)
Closest name: Cool Gray (#8c92ac)Relative luminance 0.2662

Colors that go with #818ea2

Charcoal, Copper and Denim 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.

Real palettes that use #818ea2

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a29581

#819fa2 · #8481a2

#a2818e · #8ea281

Split-complementary

Open in tool →

#a28481 · #9fa281

#a2819f · #a29581 · #81a284

Contrast

#818ea2 as textRatioAAAA largeAAAFix
Aaon white
3.32:1failpassfail
  • AA: use #68778d as the text (4.55:1)
  • AAA: use #4e596a as the text (7.09:1)
  • AA: or shift the background to #262626 (4.56:1)
Aaon black
6.32:1passpassfail
  • AAA: use #8a96a8 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #818ea2 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #818ea2
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 #818ea2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/818ea2-9ca7c4-df5f4e-201f2d-e9f0f1?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