Color

#031c0f

#031c0f
hex#031c0f
rgbrgb(3, 28, 15)
hslhsl(149, 81%, 6%)
oklchoklch(0.202 0.042 158.1)
Closest name: Nightmare (#112211)Relative luminance 0.0088

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1c0310

#031c03 · #031c1b

#0f031c · #1c0f03

Split-complementary

Open in tool →

#1b031c · #1c0303

#03031c · #1c0310 · #1c1b03

Contrast

#031c0f as textRatioAAAA largeAAAFix
Aaon white
17.84:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #0e8648 as the text (4.52:1)
  • AAA: use #12ab5c as the text (7.01:1)
  • AA: or shift the background to #808080 (4.52:1)
  • AAA: or shift the background to #a3a3a3 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #031c0f 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

#031c0f reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #031c0f
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 #031c0f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/031c0f-a2beb3-d459d4-1f2d2c-e9f1e9?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