Color

#278665

#278665
hex#278665
rgbrgb(39, 134, 101)
hslhsl(159, 55%, 34%)
oklchoklch(0.556 0.102 165.5)
Closest name: Elf (#1b8a6b)Relative luminance 0.1842

Colors that go with #278665

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#862748

#278635 · #277886

#652786 · #866527

Split-complementary

Open in tool →

#862778 · #863527

#352786 · #862748 · #788627

Contrast

#278665 as textRatioAAAA largeAAAFix
Aaon white
4.48:1failpassfail
  • AA: use #268262 as the text (4.72:1)
  • AAA: use #1d634a as the text (7.15:1)
  • AA: or shift the background to #050505 (4.55:1)
Aaon black
4.68:1passpassfail
  • AAA: use #31aa80 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #278665 as the background.

Brands using this color

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

mcpConnect your agent — build around #278665
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 #278665 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/278665-a2beb8-d459c0-1f2c2d-e9f1eb?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