Color

#153d3d

#153d3d
hex#153d3d
rgbrgb(21, 61, 61)
hslhsl(180, 49%, 16%)
oklchoklch(0.332 0.044 195.2)
Closest name: Botanical Night (#12403c)Relative luminance 0.0383

Colors that go with #153d3d

Crimson, Sea Green and Sienna 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 →

#3d1515

#153d29 · #15293d

#3d153d · #3d3d15

Split-complementary

Open in tool →

#3d1529 · #3d2915

#29153d · #3d1515 · #293d15

Contrast

#153d3d as textRatioAAAA largeAAAFix
Aaon white
11.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.77:1failfailfail
  • AA: use #2c8181 as the text (4.56:1)
  • AAA: use #39a7a7 as the text (7.26:1)
  • AA: or shift the background to #a1a1a1 (4.6:1)
  • AAA: or shift the background to #c7c7c7 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #153d3d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#153d3d reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #153d3d
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 #153d3d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/153d3d-a2bbbe-d45994-1f272d-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