Color

#51e94e

#51e94e
hex#51e94e
rgbrgb(81, 233, 78)
hslhsl(119, 78%, 61%)
oklchoklch(0.823 0.233 142.8)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.6058

Colors that go with #51e94e

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 →

#e74ee9

#9ee94e · #4ee999

#4e51e9 · #e94e51

Split-complementary

Open in tool →

#994ee9 · #e94e9e

#4e9ee9 · #e74ee9 · #e9994e

Contrast

#51e94e as textRatioAAAA largeAAAFix
Aaon white
1.6:1failfailfail
  • AA: use #138811 as the text (4.61:1)
  • AAA: use #0e640c as the text (7.38:1)
  • AA: or shift the background to #575757 (4.51:1)
  • AAA: or shift the background to #383838 (7.32:1)
Aaon black
13.12:1passpasspassPasses 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 #51e94e 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 #51e94e
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 #51e94e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51e94e-a2bea5-964edf-1f2d25-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