Color

#427b4e

#427b4e
hex#427b4e
rgbrgb(66, 123, 78)
hslhsl(133, 30%, 37%)
oklchoklch(0.531 0.093 149.2)
Closest name: Amazon (#387b54)Relative luminance 0.1587

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b426e

#527b42 · #427b6b

#4e427b · #7b4e42

Split-complementary

Open in tool →

#6b427b · #7b4252

#42527b · #7b426e · #7b6b42

Contrast

#427b4e as textRatioAAAA largeAAAFix
Aaon white
5.03:1passpassfail
  • AAA: use #34603d as the text (7.28:1)
Aaon black
4.17:1failpassfail
  • AA: use #468153 as the text (4.53:1)
  • AAA: use #59a66a as the text (7.09:1)
  • AA: or shift the background to #f5f5f5 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #427b4e as the background.

Brands using this color

mcpConnect your agent — build around #427b4e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #427b4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/427b4e-a2beab-b84edf-1f2d28-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