Color

#23904d

#23904d
hex#23904d
rgbrgb(35, 144, 77)
hslhsl(143, 61%, 35%)
oklchoklch(0.577 0.139 151.5)
Closest name: seagreen (#2e8b57)Relative luminance 0.2084

Colors that go with #23904d

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 →

#902366

#309023 · #239083

#4d2390 · #904d23

Split-complementary

Open in tool →

#832390 · #902330

#233090 · #902366 · #908323

Contrast

#23904d as textRatioAAAA largeAAAFix
Aaon white
4.06:1failpassfail
  • AA: use #218748 as the text (4.54:1)
  • AAA: use #186334 as the text (7.31:1)
  • AA: or shift the background to #141414 (4.53:1)
Aaon black
5.17:1passpassfail
  • AAA: use #2aac5c as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #23904d 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 #23904d
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 #23904d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/23904d-a2beb0-c859d4-1f2d2b-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