Color

#257975

#257975
hex#257975
rgbrgb(37, 121, 117)
hslhsl(177, 53%, 31%)
oklchoklch(0.526 0.079 190.5)
Closest name: Emperor Jade (#007b75)Relative luminance 0.1535

Colors that go with #257975

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 #257975

Tints & shades

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

Harmonies

Complementary

Open in tool →

#792529

#25794b · #255379

#752579 · #797525

Split-complementary

Open in tool →

#792553 · #794b25

#4b2579 · #792529 · #537925

Contrast

#257975 as textRatioAAAA largeAAAFix
Aaon white
5.16:1passpassfail
  • AAA: use #1e625e as the text (7.09:1)
Aaon black
4.07:1failpassfail
  • AA: use #28817c as the text (4.52:1)
  • AAA: use #34a8a2 as the text (7.27:1)
  • AA: or shift the background to #f0f0f0 (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 #257975 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #257975
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 #257975 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/257975-a2bcbe-d4599b-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