Color

#0f2829

#0f2829
hex#0f2829
rgbrgb(15, 40, 41)
hslhsl(182, 46%, 11%)
oklchoklch(0.258 0.031 198.9)
Closest name: Black Box (#0f282f)Relative luminance 0.0178

Tints & shades

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

Harmonies

Complementary

Open in tool →

#29100f

#0f291d · #0f1b29

#290f28 · #28290f

Split-complementary

Open in tool →

#290f1b · #291d0f

#1d0f29 · #29100f · #1b290f

Contrast

#0f2829 as textRatioAAAA largeAAAFix
Aaon white
15.49:1passpasspassPasses AAA — no fix needed.
Aaon black
1.36:1failfailfail
  • AA: use #308082 as the text (4.54:1)
  • AAA: use #3ea4a8 as the text (7.08:1)
  • AA: or shift the background to #8c8c8c (4.61:1)
  • AAA: or shift the background to #b0b0b0 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f2829 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

#0f2829 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f2829
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 #0f2829 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f2829-a2babe-d45990-1f272d-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