Color

#51946c

#51946c
hex#51946c
rgbrgb(81, 148, 108)
hslhsl(144, 29%, 45%)
oklchoklch(0.611 0.092 156.1)
Closest name: Illuminati Green (#419168)Relative luminance 0.2401

Colors that go with #51946c

Charcoal, Blue and Copper 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 →

#945179

#589451 · #51948d

#6c5194 · #946c51

Split-complementary

Open in tool →

#8d5194 · #945158

#515894 · #945179 · #948d51

Contrast

#51946c as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #47805e as the text (4.65:1)
  • AAA: use #355f46 as the text (7.3:1)
  • AA: or shift the background to #1f1f1f (4.55:1)
Aaon black
5.8:1passpassfail
  • AAA: use #5ba478 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51946c 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 #51946c
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 #51946c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51946c-a2beb0-ca59d4-1f2d2b-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