Color

#39595b

#39595b
hex#39595b
rgbrgb(57, 89, 91)
hslhsl(184, 23%, 29%)
oklchoklch(0.44 0.038 200.9)
Closest name: Arctic Nights (#345c61)Relative luminance 0.0877

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5b3b39

#395b4c · #39485b

#5b3959 · #595b39

Split-complementary

Open in tool →

#5b3948 · #5b4c39

#4c395b · #5b3b39 · #485b39

Contrast

#39595b as textRatioAAAA largeAAAFix
Aaon white
7.63:1passpasspassPasses AAA — no fix needed.
Aaon black
2.75:1failfailfail
  • AA: use #517d81 as the text (4.6:1)
  • AAA: use #6c9fa3 as the text (7.13:1)
  • AA: or shift the background to #c7c7c7 (4.51:1)
  • AAA: or shift the background to #f7f7f7 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39595b 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

#39595b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39595b
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 #39595b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39595b-a2b9be-df4e8a-1f262d-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