Color

#15487e

#15487e
hex#15487e
rgbrgb(21, 72, 126)
hslhsl(211, 71%, 29%)
oklchoklch(0.399 0.105 253.2)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.063

Colors that go with #15487e

Crimson, Blue and Denim 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 →

#7e4c15

#157d7e · #17157e

#7e1548 · #487e15

Split-complementary

Open in tool →

#7e1715 · #7d7e15

#7e157d · #7e4c15 · #157e17

Contrast

#15487e as textRatioAAAA largeAAAFix
Aaon white
9.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.26:1failfailfail
  • AA: use #2378d1 as the text (4.68:1)
  • AAA: use #5599e2 as the text (7.04:1)
  • AA: or shift the background to #b5b5b5 (4.53:1)
  • AAA: or shift the background to #e0e0e0 (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 #15487e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#15487e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15487e
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 #15487e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15487e-9cabc4-df534e-1f202d-e9f1f1?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