Color

#557a10

#557a10
hex#557a10
rgbrgb(85, 122, 16)
hslhsl(81, 77%, 27%)
oklchoklch(0.532 0.133 128.3)
Closest name: Avocado (#568203)Relative luminance 0.1589

Colors that go with #557a10

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 →

#35107a

#7a6a10 · #207a10

#10557a · #7a1055

Split-complementary

Open in tool →

#10207a · #6a107a

#107a6a · #35107a · #7a1020

Contrast

#557a10 as textRatioAAAA largeAAAFix
Aaon white
5.03:1passpassfail
  • AAA: use #425f0c as the text (7.31:1)
Aaon black
4.18:1failpassfail
  • AA: use #5b8311 as the text (4.7:1)
  • AAA: use #74a716 as the text (7.28:1)
  • AA: or shift the background to #f5f5f5 (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 #557a10 as the background.

Brands using this color

Fonts for this mood

#557a10 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #557a10
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 #557a10 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557a10-b1bea2-4e62df-222d1f-f1f0e9?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