Color

#04174e

#04174e
hex#04174e
rgbrgb(4, 23, 78)
hslhsl(225, 90%, 16%)
oklchoklch(0.235 0.104 264)
Closest name: Interstellar Blue (#001155)Relative luminance 0.0119

Colors that go with #04174e

Blue Violet, Charcoal and Rust 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 →

#4e3b04

#043b4e · #16044e

#4e0416 · #164e04

Split-complementary

Open in tool →

#4e1604 · #3b4e04

#4e043b · #4e3b04 · #044e16

Contrast

#04174e as textRatioAAAA largeAAAFix
Aaon white
16.97:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #3d6bf5 as the text (4.62:1)
  • AAA: use #7294f8 as the text (7.31:1)
  • AA: or shift the background to #858585 (4.6:1)
  • AAA: or shift the background to #a8a8a8 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #04174e as the background.

Brands using this color

Fonts for this mood

#04174e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04174e
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 #04174e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04174e-9ca1c4-df754e-221f2d-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