Color

#42797b

#42797b
hex#42797b
rgbrgb(66, 121, 123)
hslhsl(182, 30%, 37%)
oklchoklch(0.539 0.058 198.6)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1626

Colors that go with #42797b

Charcoal, Rust and Amber 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 →

#7b4442

#427b60 · #425c7b

#7b4279 · #797b42

Split-complementary

Open in tool →

#7b425c · #7b6042

#60427b · #7b4442 · #5c7b42

Contrast

#42797b as textRatioAAAA largeAAAFix
Aaon white
4.94:1passpassfail
  • AAA: use #345f60 as the text (7.11:1)
Aaon black
4.25:1failpassfail
  • AA: use #467f81 as the text (4.61:1)
  • AAA: use #59a3a6 as the text (7.21:1)
  • AA: or shift the background to #f5f5f5 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #42797b 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 #42797b
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 #42797b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42797b-a2babe-d45990-1f272d-e9f1ee?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