Color

#00510b

#00510b
hex#00510b
rgbrgb(0, 81, 11)
hslhsl(128, 100%, 16%)
oklchoklch(0.378 0.122 144)
Closest name: Forest (#0b5509)Relative luminance 0.0591

Tints & shades

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

Harmonies

Complementary

Open in tool →

#520047

#1e5200 · #005234

#0b0052 · #520b00

Split-complementary

Open in tool →

#340052 · #52001e

#001e52 · #520047 · #523400

Contrast

#00510b as textRatioAAAA largeAAAFix
Aaon white
9.63:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #008a12 as the text (4.64:1)
  • AAA: use #00b318 as the text (7.46:1)
  • AA: or shift the background to #b3b3b3 (4.59:1)
  • AAA: or shift the background to #dedede (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #00510b 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

#00510b reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00510b
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 #00510b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00510b-a2bea9-ac4edf-1f2d27-ecf1e9?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