Color

#257979

#257979
hex#257979
rgbrgb(37, 121, 121)
hslhsl(180, 53%, 31%)
oklchoklch(0.527 0.078 195)
Closest name: Emperor Jade (#007b75)Relative luminance 0.1545

Colors that go with #257979

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 #257979

Tints & shades

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

Harmonies

Complementary

Open in tool →

#792525

#25794f · #254f79

#792579 · #797925

Split-complementary

Open in tool →

#79254f · #794f25

#4f2579 · #792525 · #4f7925

Contrast

#257979 as textRatioAAAA largeAAAFix
Aaon white
5.13:1passpassfail
  • AAA: use #1e6262 as the text (7.05:1)
Aaon black
4.09:1failpassfail
  • AA: use #288181 as the text (4.55:1)
  • AAA: use #34a8a8 as the text (7.31:1)
  • AA: or shift the background to #f0f0f0 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #257979 as the background.

Brands using this color

Fonts for this mood

#257979 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #257979
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 #257979 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/257979-a2bbbe-d45994-1f272d-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