Color

#508b6b

#508b6b
hex#508b6b
rgbrgb(80, 139, 107)
hslhsl(147, 27%, 43%)
oklchoklch(0.587 0.08 158.9)
Closest name: Illuminati Green (#419168)Relative luminance 0.2123

Colors that go with #508b6b

Charcoal, Copper 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 →

#8b5071

#538b50 · #508b88

#6b508b · #8b6b50

Split-complementary

Open in tool →

#88508b · #8b5053

#50538b · #8b5071 · #8b8850

Contrast

#508b6b as textRatioAAAA largeAAAFix
Aaon white
4:1failpassfail
  • AA: use #4a8263 as the text (4.5:1)
  • AAA: use #38614a as the text (7.05:1)
  • AA: or shift the background to #141414 (4.6:1)
Aaon black
5.25:1passpassfail
  • AAA: use #60a47f as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #508b6b 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 #508b6b
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 #508b6b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/508b6b-a2beb2-d059d4-1f2d2c-eaf1e9?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