Color

#256563

#256563
hex#256563
rgbrgb(37, 101, 99)
hslhsl(178, 46%, 27%)
oklchoklch(0.466 0.064 192.3)
Closest name: Aqua Obscura (#05696b)Relative luminance 0.106

Colors that go with #256563

Crimson, Cadet Blue and Champagne 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 #256563

Tints & shades

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

Harmonies

Complementary

Open in tool →

#652527

#256543 · #254765

#622565 · #656225

Split-complementary

Open in tool →

#652547 · #654325

#432565 · #652527 · #476525

Contrast

#256563 as textRatioAAAA largeAAAFix
Aaon white
6.73:1passpassfail
  • AAA: use #24615f as the text (7.12:1)
Aaon black
3.12:1failpassfail
  • AA: use #308280 as the text (4.63:1)
  • AAA: use #3da4a0 as the text (7.02:1)
  • AA: or shift the background to #d4d4d4 (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 #256563 as the background.

Brands using this color

Fonts for this mood

#256563 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #256563
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 #256563 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/256563-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