Color

#21660f

#21660f
hex#21660f
rgbrgb(33, 102, 15)
hslhsl(108, 74%, 23%)
oklchoklch(0.449 0.136 140.3)
Closest name: darkgreen (#006400)Relative luminance 0.0986

Tints & shades

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

Harmonies

Complementary

Open in tool →

#550f66

#4c660f · #0f6629

#0f2166 · #660f21

Split-complementary

Open in tool →

#290f66 · #660f4c

#0f4c66 · #550f66 · #66290f

Contrast

#21660f as textRatioAAAA largeAAAFix
Aaon white
7.07:1passpasspassPasses AAA — no fix needed.
Aaon black
2.97:1failfailfail
  • AA: use #2c8a15 as the text (4.75:1)
  • AAA: use #37ad1a as the text (7.15:1)
  • AA: or shift the background to #cfcfcf (4.54:1)
  • AAA: or shift the background to #ffffff (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 #21660f 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

#21660f reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #21660f
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 #21660f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21660f-a4bea2-7c4edf-1f2d23-eff1e9?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