Color

#15e557

#15e557
hex#15e557
rgbrgb(21, 229, 87)
hslhsl(139, 83%, 49%)
oklchoklch(0.804 0.236 146.9)
Closest name: Green Priestess (#11dd55)Relative luminance 0.5689

Colors that go with #15e557

Taupe, Violet and Charcoal 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 →

#e515a3

#3be515 · #15e5bf

#5715e5 · #e55715

Split-complementary

Open in tool →

#bf15e5 · #e5153b

#153be5 · #e515a3 · #e5bf15

Contrast

#15e557 as textRatioAAAA largeAAAFix
Aaon white
1.7:1failfailfail
  • AA: use #0d8733 as the text (4.64:1)
  • AAA: use #0a6727 as the text (7.04:1)
  • AA: or shift the background to #525252 (4.61:1)
  • AAA: or shift the background to #363636 (7.12:1)
Aaon black
12.38:1passpasspassPasses 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 #15e557 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 #15e557
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 #15e557 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15e557-a2beae-c059d4-1f2d2a-ebf1e9?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