Color

#45c987

#45c987
hex#45c987
rgbrgb(69, 201, 135)
hslhsl(150, 55%, 53%)
oklchoklch(0.747 0.15 157.5)
Closest name: Emerald Green (#50c878)Relative luminance 0.4479

Colors that go with #45c987

Charcoal, Mustard Yellow 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 →

#c94587

#45c945 · #45c9c9

#8745c9 · #c98745

Split-complementary

Open in tool →

#c945c9 · #c94545

#4545c9 · #c94587 · #c9c945

Contrast

#45c987 as textRatioAAAA largeAAAFix
Aaon white
2.11:1failfailfail
  • AA: use #278657 as the text (4.53:1)
  • AAA: use #1d6340 as the text (7.21:1)
  • AA: or shift the background to #454545 (4.55:1)
  • AAA: or shift the background to #262626 (7.18:1)
Aaon black
9.96:1passpasspassPasses 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 #45c987 as the background.

Brands using this color

mcpConnect your agent — build around #45c987
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 #45c987 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45c987-a2beb3-d459d2-1f2d2c-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