Color

#4ea27b

#4ea27b
hex#4ea27b
rgbrgb(78, 162, 123)
hslhsl(152, 35%, 47%)
oklchoklch(0.649 0.102 161.5)
Closest name: Cosmic Green (#30a877)Relative luminance 0.2889

Colors that go with #4ea27b

Charcoal, Copper and Crimson 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.

Real palettes that use #4ea27b

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a24e75

#4ea251 · #4e9fa2

#7b4ea2 · #a27b4e

Split-complementary

Open in tool →

#a24e9f · #a2514e

#514ea2 · #a24e75 · #9fa24e

Contrast

#4ea27b as textRatioAAAA largeAAAFix
Aaon white
3.1:1failpassfail
  • AA: use #3f8363 as the text (4.53:1)
  • AAA: use #2e6049 as the text (7.28:1)
  • AA: or shift the background to #2b2b2b (4.57:1)
Aaon black
6.78:1passpassfail
  • AAA: use #50a57d as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4ea27b 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 #4ea27b
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 #4ea27b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4ea27b-a2beb4-d459ce-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