Color

#228e1a

#228e1a
hex#228e1a
rgbrgb(34, 142, 26)
hslhsl(116, 69%, 33%)
oklchoklch(0.566 0.177 142.1)
Closest name: Emerald (#028f1e)Relative luminance 0.1976

Colors that go with #228e1a

Royal Blue, Charcoal and Crimson 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 →

#861a8e

#5c8e1a · #1a8e4c

#1a228e · #8e1a22

Split-complementary

Open in tool →

#4c1a8e · #8e1a5c

#1a5c8e · #861a8e · #8e4c1a

Contrast

#228e1a as textRatioAAAA largeAAAFix
Aaon white
4.24:1failpassfail
  • AA: use #208619 as the text (4.68:1)
  • AAA: use #196713 as the text (7.02:1)
  • AA: or shift the background to #0f0f0f (4.52:1)
Aaon black
4.95:1passpassfail
  • AAA: use #29ac20 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #228e1a as the background.

Brands using this color

mcpConnect your agent — build around #228e1a
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 #228e1a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/228e1a-a2bea3-8f4edf-1f2d24-eef1e9?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