Color

#317d4e

#317d4e
hex#317d4e
rgbrgb(49, 125, 78)
hslhsl(143, 44%, 34%)
oklchoklch(0.529 0.106 153.5)
Closest name: Bold Irish (#2a814d)Relative luminance 0.1587

Colors that go with #317d4e

Charcoal, Royal Blue 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 →

#7d3160

#397d31 · #317d74

#4e317d · #7d4e31

Split-complementary

Open in tool →

#74317d · #7d3139

#31397d · #7d3160 · #7d7431

Contrast

#317d4e as textRatioAAAA largeAAAFix
Aaon white
5.03:1passpassfail
  • AAA: use #27633e as the text (7.14:1)
Aaon black
4.17:1failpassfail
  • AA: use #338452 as the text (4.56:1)
  • AAA: use #42a969 as the text (7.11:1)
  • AA: or shift the background to #f5f5f5 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #317d4e as the background.

Brands using this color

mcpConnect your agent — build around #317d4e
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 #317d4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/317d4e-a2beb0-c859d4-1f2d2b-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