Color

#03363f

#03363f
hex#03363f
rgbrgb(3, 54, 63)
hslhsl(189, 91%, 13%)
oklchoklch(0.307 0.052 213.1)
Closest name: Nordic Noir (#003344)Relative luminance 0.0302

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f0c03

#033f2a · #03183f

#3f0336 · #363f03

Split-complementary

Open in tool →

#3f0318 · #3f2a03

#2a033f · #3f0c03 · #183f03

Contrast

#03363f as textRatioAAAA largeAAAFix
Aaon white
13.1:1passpasspassPasses AAA — no fix needed.
Aaon black
1.6:1failfailfail
  • AA: use #078197 as the text (4.6:1)
  • AAA: use #09a7c3 as the text (7.33:1)
  • AA: or shift the background to #999999 (4.6:1)
  • AAA: or shift the background to #bfbfbf (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03363f 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

#03363f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03363f
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 #03363f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03363f-a2b7be-df4e7e-1f252d-e9f1ee?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