Color

#1ecc55

#1ecc55
hex#1ecc55
rgbrgb(30, 204, 85)
hslhsl(139, 74%, 46%)
oklchoklch(0.74 0.208 147.7)
Closest name: Battletoad (#11cc55)Relative luminance 0.4412

Colors that go with #1ecc55

Blue, Charcoal and Royal Blue 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 →

#cc1e95

#3ecc1e · #1eccac

#551ecc · #cc551e

Split-complementary

Open in tool →

#ac1ecc · #cc1e3e

#1e3ecc · #cc1e95 · #ccac1e

Contrast

#1ecc55 as textRatioAAAA largeAAAFix
Aaon white
2.14:1failfailfail
  • AA: use #148538 as the text (4.73:1)
  • AAA: use #0f662b as the text (7.1:1)
  • AA: or shift the background to #424242 (4.7:1)
  • AAA: or shift the background to #262626 (7.08:1)
Aaon black
9.82:1passpasspassPasses 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 #1ecc55 as the background.

Brands using this color

mcpConnect your agent — build around #1ecc55
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 #1ecc55 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1ecc55-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