Color

#15437e

#15437e
hex#15437e
rgbrgb(21, 67, 126)
hslhsl(214, 71%, 29%)
oklchoklch(0.387 0.111 256.5)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0568

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#7e5115

#15777e · #1c157e

#7e1543 · #437e15

Split-complementary

Open in tool →

#7e1c15 · #777e15

#7e1577 · #7e5115 · #157e1c

Contrast

#15437e as textRatioAAAA largeAAAFix
Aaon white
9.83:1passpasspassPasses AAA — no fix needed.
Aaon black
2.14:1failfailfail
  • AA: use #2573da as the text (4.54:1)
  • AAA: use #5e98e4 as the text (7.09:1)
  • AA: or shift the background to #b0b0b0 (4.53:1)
  • AAA: or shift the background to #dbdbdb (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15437e 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

#15437e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15437e
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #15437e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15437e-9ca9c4-df5a4e-1f1f2d-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