Color

#0b3828

#0b3828
hex#0b3828
rgbrgb(11, 56, 40)
hslhsl(159, 67%, 13%)
oklchoklch(0.306 0.056 165)
Closest name: Pitch-Black Forests (#003322)Relative luminance 0.0305

Tints & shades

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

Harmonies

Complementary

Open in tool →

#370b1a

#0b3712 · #0b3137

#280b37 · #37280b

Split-complementary

Open in tool →

#370b31 · #37120b

#120b37 · #370b1a · #31370b

Contrast

#0b3828 as textRatioAAAA largeAAAFix
Aaon white
13.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #1a845f as the text (4.51:1)
  • AAA: use #22aa7b as the text (7.1:1)
  • AA: or shift the background to #999999 (4.58:1)
  • AAA: or shift the background to #bfbfbf (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 #0b3828 as the background.

Brands using this color

Fonts for this mood

#0b3828 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0b3828
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 #0b3828 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0b3828-a2beb8-d459c0-1f2c2d-e9f1eb?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