Color

#257973

#257973
hex#257973
rgbrgb(37, 121, 115)
hslhsl(176, 53%, 31%)
oklchoklch(0.525 0.079 188.2)
Closest name: Emperor Jade (#007b75)Relative luminance 0.1531

Colors that go with #257973

Charcoal, Crimson 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.

Real palettes that use #257973

Tints & shades

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

Harmonies

Complementary

Open in tool →

#79252b

#257949 · #255579

#732579 · #797325

Split-complementary

Open in tool →

#792555 · #794925

#492579 · #79252b · #557925

Contrast

#257973 as textRatioAAAA largeAAAFix
Aaon white
5.17:1passpassfail
  • AAA: use #1e625d as the text (7.09:1)
Aaon black
4.06:1failpassfail
  • AA: use #28817b as the text (4.52:1)
  • AAA: use #34a8a0 as the text (7.25:1)
  • AA: or shift the background to #f0f0f0 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #257973 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #257973
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 #257973 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/257973-a2bdbe-d4599d-1f282d-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