Color

#3d152b

#3d152b
hex#3d152b
rgbrgb(61, 21, 43)
hslhsl(327, 49%, 16%)
oklchoklch(0.266 0.069 348.7)
Closest name: Nightly Voyager (#391531)Relative luminance 0.017

Colors that go with #3d152b

Charcoal, Rust and Sea Green 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 →

#153d27

#3b153d · #3d1517

#2b3d15 · #152b3d

Split-complementary

Open in tool →

#173d15 · #153d3b

#3d3b15 · #153d27 · #15173d

Contrast

#3d152b as textRatioAAAA largeAAAFix
Aaon white
15.66:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #c1498b as the text (4.59:1)
  • AAA: use #d17aaa as the text (7.08:1)
  • AA: or shift the background to #8a8a8a (4.54:1)
  • AAA: or shift the background to #b0b0b0 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d152b 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

#3d152b reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d152b
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 #3d152b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d152b-c19fae-66cb62-2d1f21-f1e9f1?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