Color

#15931d

#15931d
hex#15931d
rgbrgb(21, 147, 29)
hslhsl(124, 75%, 33%)
oklchoklch(0.578 0.184 143.3)
Closest name: Emerald (#028f1e)Relative luminance 0.2112

Colors that go with #15931d

Crimson, Royal Blue and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#93158b

#4c9315 · #15935d

#1d1593 · #931d15

Split-complementary

Open in tool →

#5d1593 · #93154c

#154c93 · #93158b · #935d15

Contrast

#15931d as textRatioAAAA largeAAAFix
Aaon white
4.02:1failpassfail
  • AA: use #13861b as the text (4.72:1)
  • AAA: use #0f6715 as the text (7.07:1)
  • AA: or shift the background to #141414 (4.58:1)
Aaon black
5.22:1passpassfail
  • AAA: use #19ae23 as the text (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 #15931d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #15931d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #15931d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15931d-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