Color

#3d8a89

#3d8a89
hex#3d8a89
rgbrgb(61, 138, 137)
hslhsl(179, 39%, 39%)
oklchoklch(0.585 0.076 194.1)
Closest name: Highlands (#449084)Relative luminance 0.2098

Colors that go with #3d8a89

Charcoal, Copper and Cobalt 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a3d3e

#3d8a62 · #3d658a

#893d8a · #8a893d

Split-complementary

Open in tool →

#8a3d65 · #8a623d

#623d8a · #8a3d3e · #658a3d

Contrast

#3d8a89 as textRatioAAAA largeAAAFix
Aaon white
4.04:1failpassfail
  • AA: use #38807e as the text (4.61:1)
  • AAA: use #2a605f as the text (7.15:1)
  • AA: or shift the background to #141414 (4.56:1)
Aaon black
5.2:1passpassfail
  • AAA: use #48a3a2 as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d8a89 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 #3d8a89
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 #3d8a89 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d8a89-a2bbbe-d45996-1f272d-e9f1ed?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