Color

#37813a

#37813a
hex#37813a
rgbrgb(55, 129, 58)
hslhsl(122, 40%, 36%)
oklchoklch(0.539 0.129 144.2)
Closest name: Bold Irish (#2a814d)Relative luminance 0.1682

Colors that go with #37813a

Charcoal, Royal Blue and Dark Orchid 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 →

#81377e

#598137 · #37815e

#3a3781 · #813a37

Split-complementary

Open in tool →

#5e3781 · #813759

#375981 · #81377e · #815e37

Contrast

#37813a as textRatioAAAA largeAAAFix
Aaon white
4.81:1passpassfail
  • AAA: use #2b642d as the text (7.09:1)
Aaon black
4.36:1failpassfail
  • AA: use #39843b as the text (4.54:1)
  • AAA: use #49ab4d as the text (7.22:1)
  • AA: or shift the background to #fafafa (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 #37813a 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 #37813a
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 #37813a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37813a-a2bea6-9e4edf-1f2d26-edf1e9?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