Color

#152f74

#152f74
hex#152f74
rgbrgb(21, 47, 116)
hslhsl(224, 69%, 27%)
oklchoklch(0.332 0.123 264.8)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0345

Colors that go with #152f74

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 →

#745b15

#155e74 · #2c1574

#74152f · #2f7415

Split-complementary

Open in tool →

#742c15 · #5e7415

#74155e · #745b15 · #15742c

Contrast

#152f74 as textRatioAAAA largeAAAFix
Aaon white
12.42:1passpasspassPasses AAA — no fix needed.
Aaon black
1.69:1failfailfail
  • AA: use #466edd as the text (4.53:1)
  • AAA: use #7593e6 as the text (7.07:1)
  • AA: or shift the background to #9c9c9c (4.52:1)
  • AAA: or shift the background to #c4c4c4 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #152f74 as the background.

Brands using this color

Fonts for this mood

#152f74 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #152f74
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 #152f74 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/152f74-9ca2c4-df724e-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