Color

#138b47

#138b47
hex#138b47
rgbrgb(19, 139, 71)
hslhsl(146, 76%, 31%)
oklchoklch(0.56 0.143 151.6)
Closest name: Center Field (#008b56)Relative luminance 0.1906

Colors that go with #138b47

Charcoal, Royal Blue and Medium Violet Red 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 →

#8b1357

#1b8b13 · #138b83

#47138b · #8b4713

Split-complementary

Open in tool →

#83138b · #8b131b

#131b8b · #8b1357 · #8b8313

Contrast

#138b47 as textRatioAAAA largeAAAFix
Aaon white
4.36:1failpassfail
  • AA: use #128745 as the text (4.59:1)
  • AAA: use #0d6332 as the text (7.37:1)
  • AA: or shift the background to #0a0a0a (4.54:1)
Aaon black
4.81:1passpassfail
  • AAA: use #18af59 as the text (7.32:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #138b47 as the background.

Brands using this color

mcpConnect your agent — build around #138b47
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 #138b47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/138b47-a2beb1-ce59d4-1f2d2b-eaf1e9?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