Color

#128c63

#128c63
hex#128c63
rgbrgb(18, 140, 99)
hslhsl(160, 77%, 31%)
oklchoklch(0.568 0.118 163.4)
Closest name: Elf (#1b8a6b)Relative luminance 0.1979

Colors that go with #128c63

Charcoal, Crimson and Medium Violet Red 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 →

#8c123b

#128c26 · #12788c

#63128c · #8c6312

Split-complementary

Open in tool →

#8c1278 · #8c2612

#26128c · #8c123b · #788c12

Contrast

#128c63 as textRatioAAAA largeAAAFix
Aaon white
4.24:1failpassfail
  • AA: use #128760 as the text (4.51:1)
  • AAA: use #0d6346 as the text (7.27:1)
  • AA: or shift the background to #0f0f0f (4.52:1)
Aaon black
4.96:1passpassfail
  • AAA: use #16ac7a as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #128c63 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 #128c63
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 #128c63 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/128c63-a2beb8-d459be-1f2c2d-e9f1eb?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