Color

#538a19

#538a19
hex#538a19
rgbrgb(83, 138, 25)
hslhsl(89, 69%, 32%)
oklchoklch(0.573 0.151 132.9)
Closest name: Avocado (#568203)Relative luminance 0.2009

Colors that go with #538a19

Crimson, Royal Blue and Charcoal 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 →

#50198a

#8a8819 · #1b8a19

#19538a · #8a1953

Split-complementary

Open in tool →

#191b8a · #88198a

#198a88 · #50198a · #8a191b

Contrast

#538a19 as textRatioAAAA largeAAAFix
Aaon white
4.19:1failpassfail
  • AA: use #4e8118 as the text (4.69:1)
  • AAA: use #3c6312 as the text (7.03:1)
  • AA: or shift the background to #0f0f0f (4.58:1)
Aaon black
5.02:1passpassfail
  • AAA: use #66a81f as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #538a19 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 #538a19
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 #538a19 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/538a19-adbea2-4e4edf-212d1f-f1f1e9?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