Color

#0d439c

#0d439c
hex#0d439c
rgbrgb(13, 67, 156)
hslhsl(217, 85%, 33%)
oklchoklch(0.409 0.155 260.5)
Closest name: Cascade Twilight (#234893)Relative luminance 0.065

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9c650d

#0d8b9c · #1d0d9c

#9c0d43 · #439c0d

Split-complementary

Open in tool →

#9c1d0d · #8b9c0d

#9c0d8b · #9c650d · #0d9c1d

Contrast

#0d439c as textRatioAAAA largeAAAFix
Aaon white
9.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #216fed as the text (4.56:1)
  • AAA: use #5f97f2 as the text (7.2:1)
  • AA: or shift the background to #b8b8b8 (4.6:1)
  • AAA: or shift the background to #e3e3e3 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0d439c 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

#0d439c reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0d439c
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 #0d439c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0d439c-9ca7c4-df624e-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