Color

#255156

#255156
hex#255156
rgbrgb(37, 81, 86)
hslhsl(186, 40%, 24%)
oklchoklch(0.406 0.049 205.2)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0695

Colors that go with #255156

Steel Blue, Teal and Rust 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#562a25

#255642 · #253856

#562551 · #515625

Split-complementary

Open in tool →

#562538 · #564225

#422556 · #562a25 · #385625

Contrast

#255156 as textRatioAAAA largeAAAFix
Aaon white
8.79:1passpasspassPasses AAA — no fix needed.
Aaon black
2.39:1failfailfail
  • AA: use #3a8088 as the text (4.62:1)
  • AAA: use #49a2ab as the text (7.04:1)
  • AA: or shift the background to #bababa (4.53:1)
  • AAA: or shift the background to #e6e6e6 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #255156 as the background.

Brands using this color

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

Fonts for this mood

#255156 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #255156
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 #255156 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/255156-a2b8be-df4e86-1f262d-e9f1ee?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