Color

#133f3e

#133f3e
hex#133f3e
rgbrgb(19, 63, 62)
hslhsl(179, 54%, 16%)
oklchoklch(0.338 0.047 193)
Closest name: Botanical Night (#12403c)Relative luminance 0.0404

Colors that go with #133f3e

Crimson, Sea Green and Teal 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 →

#3f1314

#133f28 · #132a3f

#3e133f · #3f3e13

Split-complementary

Open in tool →

#3f132a · #3f2813

#28133f · #3f1314 · #2a3f13

Contrast

#133f3e as textRatioAAAA largeAAAFix
Aaon white
11.61:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #278280 as the text (4.59:1)
  • AAA: use #31a5a3 as the text (7.04:1)
  • AA: or shift the background to #a3a3a3 (4.6:1)
  • AAA: or shift the background to #c9c9c9 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #133f3e as the background.

Brands using this color

Fonts for this mood

#133f3e reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #133f3e
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 #133f3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/133f3e-a2bbbe-d45996-1f272d-e9f1ed?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