Color

#257976

#257976
hex#257976
rgbrgb(37, 121, 118)
hslhsl(178, 53%, 31%)
oklchoklch(0.526 0.078 191.6)
Closest name: Emperor Jade (#007b75)Relative luminance 0.1538

Colors that go with #257976

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 #257976

Tints & shades

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

Harmonies

Complementary

Open in tool →

#792528

#25794c · #255279

#762579 · #797625

Split-complementary

Open in tool →

#792552 · #794c25

#4c2579 · #792528 · #527925

Contrast

#257976 as textRatioAAAA largeAAAFix
Aaon white
5.15:1passpassfail
  • AAA: use #1e625f as the text (7.08:1)
Aaon black
4.08:1failpassfail
  • AA: use #28817e as the text (4.53:1)
  • AAA: use #34a8a4 as the text (7.28:1)
  • AA: or shift the background to #f0f0f0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #257976 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #257976
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 #257976 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/257976-a2bcbe-d45999-1f282d-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