Color

#15513a

#15513a
hex#15513a
rgbrgb(21, 81, 58)
hslhsl(157, 59%, 20%)
oklchoklch(0.39 0.073 163.5)
Closest name: Cape Verde (#01554f)Relative luminance 0.0635

Colors that go with #15513a

Blue, Crimson and Denim 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 →

#51152c

#15511c · #154a51

#3a1551 · #513a15

Split-complementary

Open in tool →

#51154a · #511c15

#1c1551 · #51152c · #4a5115

Contrast

#15513a as textRatioAAAA largeAAAFix
Aaon white
9.25:1passpasspassPasses AAA — no fix needed.
Aaon black
2.27:1failfailfail
  • AA: use #238660 as the text (4.65:1)
  • AAA: use #2caa7a as the text (7.14:1)
  • AA: or shift the background to #b5b5b5 (4.51:1)
  • AAA: or shift the background to #e0e0e0 (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 #15513a as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#15513a reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15513a
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 #15513a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15513a-a2beb7-d459c4-1f2c2d-e9f1ea?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