Color

#237b71

#237b71
hex#237b71
rgbrgb(35, 123, 113)
hslhsl(173, 56%, 31%)
oklchoklch(0.529 0.083 184.1)
Closest name: Emperor Jade (#007b75)Relative luminance 0.1572

Colors that go with #237b71

Charcoal, Medium Violet Red 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.

Real palettes that use #237b71

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b232d

#237b45 · #23597b

#71237b · #7b7123

Split-complementary

Open in tool →

#7b2359 · #7b4523

#45237b · #7b232d · #597b23

Contrast

#237b71 as textRatioAAAA largeAAAFix
Aaon white
5.07:1passpassfail
  • AAA: use #1c635b as the text (7.03:1)
Aaon black
4.14:1failpassfail
  • AA: use #258378 as the text (4.6:1)
  • AAA: use #2fa799 as the text (7.11:1)
  • AA: or shift the background to #f2f2f2 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #237b71 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #237b71
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 #237b71 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/237b71-a2bebe-d459a3-1f292d-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