Color

#128203

#128203
hex#128203
rgbrgb(18, 130, 3)
hslhsl(113, 95%, 26%)
oklchoklch(0.528 0.175 141.8)
Closest name: green (#008000)Relative luminance 0.161

Colors that go with #128203

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 →

#730381

#518103 · #038134

#031281 · #810312

Split-complementary

Open in tool →

#340381 · #810351

#035181 · #730381 · #813403

Contrast

#128203 as textRatioAAAA largeAAAFix
Aaon white
4.98:1passpassfail
  • AAA: use #0e6303 as the text (7.49:1)
Aaon black
4.22:1failpassfail
  • AA: use #138b04 as the text (4.72:1)
  • AAA: use #18ae04 as the text (7.1:1)
  • AA: or shift the background to #f5f5f5 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #128203 as the background.

Brands using this color

Fonts for this mood

#128203 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #128203
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 #128203 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/128203-a2bea2-884edf-1f2d24-eef1e9?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