Color

#152f6a

#152f6a
hex#152f6a
rgbrgb(21, 47, 106)
hslhsl(222, 67%, 25%)
oklchoklch(0.323 0.108 263.6)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0323

Colors that go with #152f6a

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 →

#6a5115

#15596a · #26156a

#6a152f · #2f6a15

Split-complementary

Open in tool →

#6a2615 · #596a15

#6a1559 · #6a5115 · #156a26

Contrast

#152f6a as textRatioAAAA largeAAAFix
Aaon white
12.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.65:1failfailfail
  • AA: use #4471da as the text (4.62:1)
  • AAA: use #7294e3 as the text (7.06:1)
  • AA: or shift the background to #9c9c9c (4.65:1)
  • AAA: or shift the background to #c2c2c2 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #152f6a as the background.

Brands using this color

Fonts for this mood

#152f6a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #152f6a
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 #152f6a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/152f6a-9ca3c4-df6e4e-211f2d-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