Color

#003303

#003303
hex#003303
rgbrgb(0, 51, 3)
hslhsl(124, 100%, 10%)
oklchoklch(0.279 0.092 143.5)
Closest name: Haunted Hills (#003311)Relative luminance 0.0237

Tints & shades

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

Harmonies

Complementary

Open in tool →

#330030

#163300 · #00331d

#030033 · #330300

Split-complementary

Open in tool →

#1d0033 · #330016

#001633 · #330030 · #331d00

Contrast

#003303 as textRatioAAAA largeAAAFix
Aaon white
14.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.47:1failfailfail
  • AA: use #008a09 as the text (4.64:1)
  • AAA: use #00b30c as the text (7.45:1)
  • AA: or shift the background to #919191 (4.52:1)
  • AAA: or shift the background to #b8b8b8 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #003303 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

#003303 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003303
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 #003303 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003303-a2bea7-a24edf-1f2d26-edf1e9?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