Color

#3d888f

#3d888f
hex#3d888f
rgbrgb(61, 136, 143)
hslhsl(185, 40%, 40%)
oklchoklch(0.582 0.074 203.6)
Closest name: darkcyan (#008b8b)Relative luminance 0.2058

Colors that go with #3d888f

Charcoal, Copper 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 →

#8f443d

#3d8f6d · #3d5f8f

#8f3d88 · #888f3d

Split-complementary

Open in tool →

#8f3d5f · #8f6d3d

#6d3d8f · #8f443d · #5f8f3d

Contrast

#3d888f as textRatioAAAA largeAAAFix
Aaon white
4.1:1failpassfail
  • AA: use #397e84 as the text (4.68:1)
  • AAA: use #2b5f64 as the text (7.18:1)
  • AA: or shift the background to #121212 (4.56:1)
Aaon black
5.12:1passpassfail
  • AAA: use #49a3ab as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d888f 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

Fonts for this mood

#3d888f reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d888f
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 #3d888f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d888f-a2b8be-df4e88-1f262d-e9f1ee?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