Color

#155403

#155403
hex#155403
rgbrgb(21, 84, 3)
hslhsl(107, 93%, 17%)
oklchoklch(0.391 0.124 140.3)
Closest name: Donegal Green (#115500)Relative luminance 0.0651

Tints & shades

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

Harmonies

Complementary

Open in tool →

#420354

#3d5403 · #03541a

#031554 · #540315

Split-complementary

Open in tool →

#1a0354 · #54033d

#033d54 · #420354 · #541a03

Contrast

#155403 as textRatioAAAA largeAAAFix
Aaon white
9.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #228a05 as the text (4.71:1)
  • AAA: use #2aac06 as the text (7:1)
  • AA: or shift the background to #b8b8b8 (4.6:1)
  • AAA: or shift the background to #e3e3e3 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #155403 as the background.

Brands using this color

Fonts for this mood

#155403 reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #155403
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 #155403 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/155403-a5bea2-7a4edf-1f2d22-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