Color

#21974a

#21974a
hex#21974a
rgbrgb(33, 151, 74)
hslhsl(141, 64%, 36%)
oklchoklch(0.596 0.152 149.8)
Closest name: Green Revolution (#009944)Relative luminance 0.2295

Colors that go with #21974a

Charcoal, Crimson and Royal Blue 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 →

#97216d

#339721 · #219785

#4a2197 · #974a21

Split-complementary

Open in tool →

#852197 · #972133

#213397 · #97216d · #978521

Contrast

#21974a as textRatioAAAA largeAAAFix
Aaon white
3.76:1failpassfail
  • AA: use #1d8642 as the text (4.62:1)
  • AAA: use #166431 as the text (7.24:1)
  • AA: or shift the background to #1c1c1c (4.54:1)
Aaon black
5.59:1passpassfail
  • AAA: use #26ab54 as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #21974a 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 #21974a
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 #21974a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21974a-a2beaf-c459d4-1f2d2a-eaf1e9?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