Color

#15e587

#15e587
hex#15e587
rgbrgb(21, 229, 135)
hslhsl(153, 83%, 49%)
oklchoklch(0.811 0.197 155.2)
Closest name: Grotesque Green (#64e986)Relative luminance 0.5795

Colors that go with #15e587

Deep Sky Blue, Taupe and Violet 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 →

#e51573

#15e520 · #15dae5

#8715e5 · #e58715

Split-complementary

Open in tool →

#e515da · #e52015

#2015e5 · #e51573 · #dae515

Contrast

#15e587 as textRatioAAAA largeAAAFix
Aaon white
1.67:1failfailfail
  • AA: use #0d8750 as the text (4.57:1)
  • AAA: use #09623a as the text (7.45:1)
  • AA: or shift the background to #545454 (4.54:1)
  • AAA: or shift the background to #383838 (7.03:1)
Aaon black
12.59:1passpasspassPasses 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 #15e587 as the background.

Brands using this color

mcpConnect your agent — build around #15e587
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 #15e587 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15e587-a2beb5-d459cc-1f2d2d-e9f1ea?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