Color

#256b79

#256b79
hex#256b79
rgbrgb(37, 107, 121)
hslhsl(190, 53%, 31%)
oklchoklch(0.491 0.072 213.4)
Closest name: Aqua Obscura (#05696b)Relative luminance 0.1229

Colors that go with #256b79

Charcoal, Rust 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 #256b79

Tints & shades

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

Harmonies

Complementary

Open in tool →

#793325

#25795d · #254179

#79256b · #6b7925

Split-complementary

Open in tool →

#792541 · #795d25

#5d2579 · #793325 · #417925

Contrast

#256b79 as textRatioAAAA largeAAAFix
Aaon white
6.07:1passpassfail
Aaon black
3.46:1failpassfail
  • AA: use #2c8090 as the text (4.6:1)
  • AAA: use #38a2b7 as the text (7.02:1)
  • AA: or shift the background to #dedede (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 #256b79 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#256b79 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #256b79
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 #256b79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/256b79-a2b6be-df4e7c-1f252d-e9f1ef?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