Color

#004203

#004203
hex#004203
rgbrgb(0, 66, 3)
hslhsl(123, 100%, 13%)
oklchoklch(0.329 0.11 143.1)
Closest name: British Racing Green (#05480d)Relative luminance 0.039

Tints & shades

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

Harmonies

Complementary

Open in tool →

#42003f

#1e4200 · #004224

#030042 · #420300

Split-complementary

Open in tool →

#240042 · #42001e

#001e42 · #42003f · #422400

Contrast

#004203 as textRatioAAAA largeAAAFix
Aaon white
11.79:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #008a07 as the text (4.64:1)
  • AAA: use #00b309 as the text (7.45:1)
  • AA: or shift the background to #a1a1a1 (4.56:1)
  • AAA: or shift the background to #c9c9c9 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #004203 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

#004203 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #004203
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 #004203 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/004203-a2bea6-a04edf-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