Color

#218103

#218103
hex#218103
rgbrgb(33, 129, 3)
hslhsl(106, 95%, 26%)
oklchoklch(0.528 0.171 140.6)
Closest name: green (#008000)Relative luminance 0.1603

Colors that go with #218103

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 →

#640381

#608103 · #038125

#032181 · #810321

Split-complementary

Open in tool →

#250381 · #810360

#036081 · #640381 · #812503

Contrast

#218103 as textRatioAAAA largeAAAFix
Aaon white
4.99:1passpassfail
  • AAA: use #196303 as the text (7.43:1)
Aaon black
4.21:1failpassfail
  • AA: use #238b04 as the text (4.77:1)
  • AAA: use #2cae04 as the text (7.16:1)
  • AA: or shift the background to #f5f5f5 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #218103 as the background.

Brands using this color

Fonts for this mood

#218103 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #218103
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 #218103 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/218103-a5bea2-774edf-1f2d22-eff1e9?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