Color

#3e516f

#3e516f
hex#3e516f
rgbrgb(62, 81, 111)
hslhsl(217, 28%, 34%)
oklchoklch(0.432 0.055 259.3)
Closest name: Bluedgeons (#324c64)Relative luminance 0.0806

Colors that go with #3e516f

Teal, Sienna and 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.

Real palettes that use #3e516f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6f5c3e

#3e696f · #443e6f

#6f3e51 · #516f3e

Split-complementary

Open in tool →

#6f443e · #696f3e

#6f3e69 · #6f5c3e · #3e6f44

Contrast

#3e516f as textRatioAAAA largeAAAFix
Aaon white
8.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.61:1failfailfail
  • AA: use #5c77a3 as the text (4.62:1)
  • AAA: use #8398b9 as the text (7.16:1)
  • AA: or shift the background to #c2c2c2 (4.51:1)
  • AAA: or shift the background to #f0f0f0 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e516f as the background.

Brands using this color

mcpConnect your agent — build around #3e516f
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 #3e516f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e516f-9ca7c4-df624e-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