Color

#152e79

#152e79
hex#152e79
rgbrgb(21, 46, 121)
hslhsl(225, 70%, 28%)
oklchoklch(0.335 0.132 265.5)
Closest name: Below the Surface (#0a2f7c)Relative luminance 0.0349

Colors that go with #152e79

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 →

#796015

#156079 · #2e1579

#79152e · #2e7915

Split-complementary

Open in tool →

#792e15 · #607915

#791560 · #796015 · #15792e

Contrast

#152e79 as textRatioAAAA largeAAAFix
Aaon white
12.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.7:1failfailfail
  • AA: use #496edf as the text (4.58:1)
  • AAA: use #7994e7 as the text (7.2:1)
  • AA: or shift the background to #9c9c9c (4.5:1)
  • AAA: or shift the background to #c4c4c4 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #152e79 as the background.

Brands using this color

Fonts for this mood

#152e79 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #152e79
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 #152e79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/152e79-9ca1c4-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