Color

#3d615b

#3d615b
hex#3d615b
rgbrgb(61, 97, 91)
hslhsl(170, 23%, 31%)
oklchoklch(0.463 0.043 182.8)
Closest name: Ethereal Woods (#3e5e4e)Relative luminance 0.103

Colors that go with #3d615b

Cadet Blue, Champagne and Copper 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 #3d615b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#613d43

#3d6149 · #3d5561

#5b3d61 · #615b3d

Split-complementary

Open in tool →

#613d55 · #61493d

#493d61 · #613d43 · #55613d

Contrast

#3d615b as textRatioAAAA largeAAAFix
Aaon white
6.86:1passpassfail
  • AAA: use #3b5e58 as the text (7.17:1)
Aaon black
3.06:1failpassfail
  • AA: use #4f7d76 as the text (4.53:1)
  • AAA: use #68a197 as the text (7.13:1)
  • AA: or shift the background to #d4d4d4 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d615b 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 #3d615b
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 #3d615b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d615b-a2bebd-d459a9-1f292d-e9f1ec?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