Color

#151d01

#151d01
hex#151d01
rgbrgb(21, 29, 1)
hslhsl(77, 93%, 6%)
oklchoklch(0.215 0.051 123.2)
Closest name: Nightmare (#112211)Relative luminance 0.0104

Tints & shades

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

Harmonies

Complementary

Open in tool →

#09011e

#1e1701 · #071e01

#01151e · #1e0115

Split-complementary

Open in tool →

#01071e · #17011e

#011e17 · #09011e · #1e0107

Contrast

#151d01 as textRatioAAAA largeAAAFix
Aaon white
17.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #5d8005 as the text (4.56:1)
  • AAA: use #7aa706 as the text (7.36:1)
  • AA: or shift the background to #828282 (4.52:1)
  • AAA: or shift the background to #a6a6a6 (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 #151d01 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

#151d01 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #151d01
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 #151d01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/151d01-b3bea2-4e6bdf-232d1f-f1efe9?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