Color

#123f36

#123f36
hex#123f36
rgbrgb(18, 63, 54)
hslhsl(168, 56%, 16%)
oklchoklch(0.334 0.051 177.3)
Closest name: Botanical Night (#12403c)Relative luminance 0.0395

Colors that go with #123f36

Sea Green, Teal and Amber 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 →

#40121b

#124020 · #123240

#371240 · #403712

Split-complementary

Open in tool →

#401232 · #402012

#201240 · #40121b · #324012

Contrast

#123f36 as textRatioAAAA largeAAAFix
Aaon white
11.73:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #258370 as the text (4.56:1)
  • AAA: use #2fa78f as the text (7.04:1)
  • AA: or shift the background to #a1a1a1 (4.54:1)
  • AAA: or shift the background to #c9c9c9 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #123f36 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#123f36 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #123f36
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 #123f36 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/123f36-a2bebc-d459ad-1f2a2d-e9f1ec?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