Color

#152c6f

#152c6f
hex#152c6f
rgbrgb(21, 44, 111)
hslhsl(225, 68%, 26%)
oklchoklch(0.321 0.12 265.6)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0311

Colors that go with #152c6f

Charcoal, Steel Blue and 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 →

#6f5915

#15596f · #2c156f

#6f152c · #2c6f15

Split-complementary

Open in tool →

#6f2c15 · #596f15

#6f1559 · #6f5915 · #156f2c

Contrast

#152c6f as textRatioAAAA largeAAAFix
Aaon white
12.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #4b6fdd as the text (4.62:1)
  • AAA: use #7692e5 as the text (7.01:1)
  • AA: or shift the background to #999999 (4.55:1)
  • AAA: or shift the background to #bfbfbf (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #152c6f as the background.

Brands using this color

Fonts for this mood

#152c6f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #152c6f
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 #152c6f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/152c6f-9ca1c4-df754e-221f2d-e9eff1?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