Color

#153270

#153270
hex#153270
rgbrgb(21, 50, 112)
hslhsl(221, 68%, 26%)
oklchoklch(0.335 0.113 262.9)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0361

Colors that go with #153270

Steel Blue, Blue and Cadet 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 →

#6f5315

#155f6f · #26156f

#6f1532 · #326f15

Split-complementary

Open in tool →

#6f2615 · #5f6f15

#6f155f · #6f5315 · #156f26

Contrast

#153270 as textRatioAAAA largeAAAFix
Aaon white
12.19:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #3e70da as the text (4.53:1)
  • AAA: use #7296e4 as the text (7.2:1)
  • AA: or shift the background to #9e9e9e (4.55:1)
  • AAA: or shift the background to #c7c7c7 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #153270 as the background.

Brands using this color

Fonts for this mood

#153270 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #153270
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 #153270 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/153270-9ca4c4-df6b4e-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