Color

#128c16

#128c16
hex#128c16
rgbrgb(18, 140, 22)
hslhsl(122, 77%, 31%)
oklchoklch(0.557 0.18 142.9)
Closest name: Emerald (#028f1e)Relative luminance 0.1894

Colors that go with #128c16

Royal Blue, Charcoal 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 →

#8c1288

#4b8c12 · #128c53

#16128c · #8c1612

Split-complementary

Open in tool →

#53128c · #8c124b

#124b8c · #8c1288 · #8c5312

Contrast

#128c16 as textRatioAAAA largeAAAFix
Aaon white
4.39:1failpassfail
  • AA: use #128716 as the text (4.66:1)
  • AAA: use #0d6310 as the text (7.48:1)
  • AA: or shift the background to #0a0a0a (4.51:1)
Aaon black
4.79:1passpassfail
  • AAA: use #17b01c as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #128c16 as the background.

Brands using this color

mcpConnect your agent — build around #128c16
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 #128c16 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/128c16-a2bea6-9e4edf-1f2d26-edf1e9?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