Color

#39465b

#39465b
hex#39465b
rgbrgb(57, 70, 91)
hslhsl(217, 23%, 29%)
oklchoklch(0.392 0.04 259.9)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0601

Colors that go with #39465b

Sea Green, Teal and Sienna 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 →

#5b4e39

#39575b · #3d395b

#5b3946 · #465b39

Split-complementary

Open in tool →

#5b3d39 · #575b39

#5b3957 · #5b4e39 · #395b3d

Contrast

#39465b as textRatioAAAA largeAAAFix
Aaon white
9.54:1passpasspassPasses AAA — no fix needed.
Aaon black
2.2:1failfailfail
  • AA: use #60769a as the text (4.56:1)
  • AAA: use #8596b2 as the text (7:1)
  • AA: or shift the background to #b3b3b3 (4.55:1)
  • AAA: or shift the background to #dedede (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39465b as the background.

Brands using this color

Fonts for this mood

#39465b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39465b
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 #39465b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39465b-9ca7c4-df624e-201f2d-e9f0f1?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