Color

#31903e

#31903e
hex#31903e
rgbrgb(49, 144, 62)
hslhsl(128, 49%, 38%)
oklchoklch(0.579 0.148 145.7)
Closest name: Overgrown Mausoleum (#448833)Relative luminance 0.2095

Colors that go with #31903e

Charcoal, Crimson and Royal Blue 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 →

#903184

#549031 · #31906e

#3e3190 · #903e31

Split-complementary

Open in tool →

#6e3190 · #903154

#315490 · #903184 · #906e31

Contrast

#31903e as textRatioAAAA largeAAAFix
Aaon white
4.05:1failpassfail
  • AA: use #2e8539 as the text (4.64:1)
  • AAA: use #22632a as the text (7.28:1)
  • AA: or shift the background to #141414 (4.55:1)
Aaon black
5.19:1passpassfail
  • AAA: use #3bab4a 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 #31903e 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 #31903e
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 #31903e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31903e-a2bea9-ac4edf-1f2d27-ecf1e9?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