Color

#317c55

#317c55
hex#317c55
rgbrgb(49, 124, 85)
hslhsl(149, 43%, 34%)
oklchoklch(0.528 0.097 157.7)
Closest name: Amazon (#387b54)Relative luminance 0.1572

Colors that go with #317c55

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 →

#7c3158

#337c31 · #317c7b

#55317c · #7c5531

Split-complementary

Open in tool →

#7b317c · #7c3133

#31337c · #7c3158 · #7c7b31

Contrast

#317c55 as textRatioAAAA largeAAAFix
Aaon white
5.07:1passpassfail
  • AAA: use #276244 as the text (7.2:1)
Aaon black
4.14:1failpassfail
  • AA: use #34835a as the text (4.54:1)
  • AAA: use #43a874 as the text (7.09:1)
  • AA: or shift the background to #f2f2f2 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #317c55 as the background.

Brands using this color

mcpConnect your agent — build around #317c55
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 #317c55 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/317c55-a2beb3-d459d4-1f2d2c-e9f1e9?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