Color

#557e01

#557e01
hex#557e01
rgbrgb(85, 126, 1)
hslhsl(80, 98%, 25%)
oklchoklch(0.542 0.143 128.8)
Closest name: Avocado (#568203)Relative luminance 0.1686

Colors that go with #557e01

Charcoal, Royal Blue and Crimson 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 →

#2b017e

#7e6901 · #167e01

#01557e · #7e0155

Split-complementary

Open in tool →

#01167e · #69017e

#017e69 · #2b017e · #7e0116

Contrast

#557e01 as textRatioAAAA largeAAAFix
Aaon white
4.8:1passpassfail
  • AAA: use #406001 as the text (7.26:1)
Aaon black
4.37:1failpassfail
  • AA: use #588301 as the text (4.66:1)
  • AAA: use #70a702 as the text (7.22:1)
  • AA: or shift the background to #fafafa (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557e01 as the background.

Brands using this color

Fonts for this mood

#557e01 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #557e01
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 #557e01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557e01-b1bea2-4e64df-232d1f-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