Color

#15418e

#15418e
hex#15418e
rgbrgb(21, 65, 142)
hslhsl(218, 74%, 32%)
oklchoklch(0.394 0.137 260.8)
Closest name: Cascade Twilight (#234893)Relative luminance 0.0589

Colors that go with #15418e

Charcoal, Crimson and Steel 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 →

#8e6215

#157e8e · #25158e

#8e1541 · #418e15

Split-complementary

Open in tool →

#8e2515 · #7e8e15

#8e157e · #8e6215 · #158e25

Contrast

#15418e as textRatioAAAA largeAAAFix
Aaon white
9.64:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #3373e1 as the text (4.68:1)
  • AAA: use #6897e8 as the text (7.18:1)
  • AA: or shift the background to #b3b3b3 (4.6:1)
  • AAA: or shift the background to #dedede (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15418e as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#15418e reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #15418e
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 #15418e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/15418e-9ca6c4-df644e-201f2d-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