Color

#15c121

#15c121
hex#15c121
rgbrgb(21, 193, 33)
hslhsl(124, 80%, 42%)
oklchoklch(0.705 0.23 143.1)
Closest name: Crude Banana (#21c40e)Relative luminance 0.3841

Colors that go with #15c121

Taupe, Hot Pink and Orchid 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 →

#c115b5

#60c115 · #15c177

#2115c1 · #c12115

Split-complementary

Open in tool →

#7715c1 · #c11560

#1560c1 · #c115b5 · #c17715

Contrast

#15c121 as textRatioAAAA largeAAAFix
Aaon white
2.42:1failfailfail
  • AA: use #0f8517 as the text (4.79:1)
  • AAA: use #0b6511 as the text (7.28:1)
  • AA: or shift the background to #3b3b3b (4.63:1)
  • AAA: or shift the background to #1c1c1c (7.05:1)
Aaon black
8.68:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15c121 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 #15c121
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 #15c121 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15c121-a2bea7-a24edf-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