Color

#45ed51

#45ed51
hex#45ed51
rgbrgb(69, 237, 81)
hslhsl(124, 82%, 60%)
oklchoklch(0.831 0.24 144)
Closest name: Becquerel (#4bec13)Relative luminance 0.6243

Colors that go with #45ed51

Taupe, Violet and Deep Sky 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 →

#ed45e1

#8eed45 · #45eda4

#5145ed · #ed5145

Split-complementary

Open in tool →

#a445ed · #ed458e

#458eed · #ed45e1 · #eda445

Contrast

#45ed51 as textRatioAAAA largeAAAFix
Aaon white
1.56:1failfailfail
  • AA: use #0d8715 as the text (4.67:1)
  • AAA: use #0a6610 as the text (7.19:1)
  • AA: or shift the background to #575757 (4.64:1)
  • AAA: or shift the background to #3b3b3b (7.19:1)
Aaon black
13.49:1passpasspassPasses 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 #45ed51 as the background.

Brands using this color

mcpConnect your agent — build around #45ed51
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 #45ed51 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45ed51-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