Color

#0d3149

#0d3149
hex#0d3149
rgbrgb(13, 49, 73)
hslhsl(204, 70%, 17%)
oklchoklch(0.301 0.059 242)
Closest name: Beyond the Stars (#0a3251)Relative luminance 0.0276

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4a250d

#0d4a44 · #0d134a

#4a0d31 · #314a0d

Split-complementary

Open in tool →

#4a0d13 · #4a440d

#440d4a · #4a250d · #134a0d

Contrast

#0d3149 as textRatioAAAA largeAAAFix
Aaon white
13.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.55:1failfailfail
  • AA: use #207ab6 as the text (4.52:1)
  • AAA: use #409fdd as the text (7.22:1)
  • AA: or shift the background to #969696 (4.57:1)
  • AAA: or shift the background to #bdbdbd (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d3149 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

#0d3149 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d3149
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 #0d3149 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d3149-9cafc4-df4e5a-1f222d-e9f1f0?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