Color

#538c03

#538c03
hex#538c03
rgbrgb(83, 140, 3)
hslhsl(85, 96%, 28%)
oklchoklch(0.578 0.16 132.3)
Closest name: Avocado (#568203)Relative luminance 0.206

Colors that go with #538c03

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 →

#3c038c

#8c8103 · #0e8c03

#03538c · #8c0353

Split-complementary

Open in tool →

#030e8c · #81038c

#038c81 · #3c038c · #8c030e

Contrast

#538c03 as textRatioAAAA largeAAAFix
Aaon white
4.1:1failpassfail
  • AA: use #4d8203 as the text (4.66:1)
  • AAA: use #385f02 as the text (7.48:1)
  • AA: or shift the background to #121212 (4.57:1)
Aaon black
5.12:1passpassfail
  • AAA: use #65aa03 as the text (7.3:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #538c03 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#538c03 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #538c03
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 #538c03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/538c03-afbea2-4e58df-212d1f-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