Color

#3a403b

#3a403b
hex#3a403b
rgbrgb(58, 64, 59)
hslhsl(130, 5%, 24%)
oklchoklch(0.364 0.012 150.4)
Closest name: Black Olive (#3b3c36)Relative luminance 0.0488

Tints & shades

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

Harmonies

Complementary

Open in tool →

#403a3f

#3c403a · #3a403e

#3b3a40 · #403b3a

Split-complementary

Open in tool →

#3e3a40 · #403a3c

#3a3c40 · #403a3f · #403e3a

Contrast

#3a403b as textRatioAAAA largeAAAFix
Aaon white
10.63:1passpasspassPasses AAA — no fix needed.
Aaon black
1.98:1failfailfail
  • AA: use #6d786f as the text (4.57:1)
  • AAA: use #8f9990 as the text (7.13:1)
  • AA: or shift the background to #ababab (4.63:1)
  • AAA: or shift the background to #d4d4d4 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a403b 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

#3a403b reads as neutral, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a403b
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 #3a403b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a403b-a2beb0-c859d4-1f2d2b-eaf1e9?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