Color

#557901

#557901
hex#557901
rgbrgb(85, 121, 1)
hslhsl(78, 98%, 24%)
oklchoklch(0.529 0.137 127.5)
Closest name: Avocado (#568203)Relative luminance 0.1561

Colors that go with #557901

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 →

#250179

#796101 · #197901

#015579 · #790155

Split-complementary

Open in tool →

#011979 · #610179

#017961 · #250179 · #790119

Contrast

#557901 as textRatioAAAA largeAAAFix
Aaon white
5.1:1passpassfail
  • AAA: use #436001 as the text (7.21:1)
Aaon black
4.12:1failpassfail
  • AA: use #5c8301 as the text (4.7:1)
  • AAA: use #75a702 as the text (7.28:1)
  • AA: or shift the background to #f2f2f2 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #557901 as the background.

Brands using this color

Fonts for this mood

#557901 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #557901
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 #557901 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/557901-b2bea2-4e69df-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