Color

#04366c

#04366c
hex#04366c
rgbrgb(4, 54, 108)
hslhsl(211, 93%, 22%)
oklchoklch(0.337 0.106 255)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0375

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6c3a04

#046b6c · #06046c

#6c0436 · #366c04

Split-complementary

Open in tool →

#6c0604 · #6b6c04

#6c046b · #6c3a04 · #046c06

Contrast

#04366c as textRatioAAAA largeAAAFix
Aaon white
12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #0872e2 as the text (4.52:1)
  • AAA: use #3f98f8 as the text (7.06:1)
  • AA: or shift the background to #a1a1a1 (4.65:1)
  • AAA: or shift the background to #c7c7c7 (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 #04366c 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

#04366c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04366c
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 #04366c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04366c-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