Color

#15427a

#15427a
hex#15427a
rgbrgb(21, 66, 122)
hslhsl(213, 71%, 28%)
oklchoklch(0.381 0.107 255.9)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0546

Colors that go with #15427a

Crimson, Teal 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 →

#7a4c15

#15757a · #1a157a

#7a1542 · #427a15

Split-complementary

Open in tool →

#7a1a15 · #757a15

#7a1575 · #7a4c15 · #157a1a

Contrast

#15427a as textRatioAAAA largeAAAFix
Aaon white
10.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.09:1failfailfail
  • AA: use #2474d6 as the text (4.54:1)
  • AAA: use #5e9ae4 as the text (7.22:1)
  • AA: or shift the background to #b0b0b0 (4.63:1)
  • AAA: or shift the background to #d9d9d9 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15427a 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

#15427a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15427a
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 #15427a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15427a-9ca9c4-df584e-1f202d-e9f0f1?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