Color

#317d5e

#317d5e
hex#317d5e
rgbrgb(49, 125, 94)
hslhsl(156, 44%, 34%)
oklchoklch(0.533 0.09 163.5)
Closest name: Amazon (#387b54)Relative luminance 0.1613

Colors that go with #317d5e

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 →

#7d314f

#317d38 · #31757d

#5e317d · #7d5e31

Split-complementary

Open in tool →

#7d3175 · #7d3831

#38317d · #7d314f · #757d31

Contrast

#317d5e as textRatioAAAA largeAAAFix
Aaon white
4.97:1passpassfail
  • AAA: use #27634b as the text (7.06:1)
Aaon black
4.23:1failpassfail
  • AA: use #338464 as the text (4.63:1)
  • AAA: use #42a980 as the text (7.22:1)
  • AA: or shift the background to #f5f5f5 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #317d5e as the background.

Brands using this color

mcpConnect your agent — build around #317d5e
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 #317d5e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/317d5e-a2beb6-d459c6-1f2d2d-e9f1ea?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