Color

#438d1b

#438d1b
hex#438d1b
rgbrgb(67, 141, 27)
hslhsl(99, 68%, 33%)
oklchoklch(0.574 0.162 137.4)
Closest name: Forest Green (#228b22)Relative luminance 0.2032

Colors that go with #438d1b

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 →

#651b8d

#7c8d1b · #1b8d2c

#1b438d · #8d1b43

Split-complementary

Open in tool →

#2c1b8d · #8d1b7c

#1b7c8d · #651b8d · #8d2c1b

Contrast

#438d1b as textRatioAAAA largeAAAFix
Aaon white
4.15:1failpassfail
  • AA: use #3f8519 as the text (4.58:1)
  • AAA: use #2f6313 as the text (7.2:1)
  • AA: or shift the background to #121212 (4.52:1)
Aaon black
5.06:1passpassfail
  • AAA: use #51ab21 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #438d1b 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 #438d1b
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 #438d1b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/438d1b-a8bea2-664edf-1f2d21-f0f1e9?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