Color

#397979

#397979
hex#397979
rgbrgb(57, 121, 121)
hslhsl(180, 36%, 35%)
oklchoklch(0.534 0.065 195.4)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1593

Colors that go with #397979

Charcoal, Firebrick and Champagne 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 →

#793939

#397959 · #395979

#793979 · #797939

Split-complementary

Open in tool →

#793959 · #795939

#593979 · #793939 · #597939

Contrast

#397979 as textRatioAAAA largeAAAFix
Aaon white
5.02:1passpassfail
Aaon black
4.19:1failpassfail
  • AA: use #3c8080 as the text (4.59:1)
  • AAA: use #4da3a3 as the text (7.08:1)
  • AA: or shift the background to #f5f5f5 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #397979 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#397979 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #397979
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 #397979 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/397979-a2bbbe-d45994-1f272d-e9f1ed?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