Color

#256f5e

#256f5e
hex#256f5e
rgbrgb(37, 111, 94)
hslhsl(166, 50%, 29%)
oklchoklch(0.491 0.078 174.8)
Closest name: Deep Pool Teal (#366d68)Relative luminance 0.1257

Colors that go with #256f5e

Charcoal, Crimson and Medium Violet Red 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 #256f5e

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6f2536

#256f39 · #255b6f

#5e256f · #6f5e25

Split-complementary

Open in tool →

#6f255b · #6f3925

#39256f · #6f2536 · #5b6f25

Contrast

#256f5e as textRatioAAAA largeAAAFix
Aaon white
5.98:1passpassfail
  • AAA: use #216354 as the text (7.05:1)
Aaon black
3.51:1failpassfail
  • AA: use #2b826e as the text (4.52:1)
  • AAA: use #38a88e as the text (7.16:1)
  • AA: or shift the background to #e0e0e0 (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 #256f5e as the background.

Brands using this color

Fonts for this mood

#256f5e reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #256f5e
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 #256f5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/256f5e-a2bebb-d459b1-1f2a2d-e9f1ec?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