Color

#427b50

#427b50
hex#427b50
rgbrgb(66, 123, 80)
hslhsl(135, 30%, 37%)
oklchoklch(0.532 0.091 150.3)
Closest name: Amazon (#387b54)Relative luminance 0.159

Colors that go with #427b50

Charcoal, Royal Blue and Medium Violet Red 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 →

#7b426d

#507b42 · #427b6d

#50427b · #7b5042

Split-complementary

Open in tool →

#6d427b · #7b4250

#42507b · #7b426d · #7b6d42

Contrast

#427b50 as textRatioAAAA largeAAAFix
Aaon white
5.02:1passpassfail
  • AAA: use #34603f as the text (7.26:1)
Aaon black
4.18:1failpassfail
  • AA: use #468155 as the text (4.53:1)
  • AAA: use #59a66c as the text (7.1:1)
  • 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 #427b50 as the background.

Brands using this color

mcpConnect your agent — build around #427b50
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 #427b50 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/427b50-a2beac-b759d4-1f2d29-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