Color

#03566d

#03566d
hex#03566d
rgbrgb(3, 86, 109)
hslhsl(193, 95%, 22%)
oklchoklch(0.421 0.078 224.2)
Closest name: Abyssal Waters (#005765)Relative luminance 0.0778

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6d1a03

#036d4f · #03216d

#6d0356 · #566d03

Split-complementary

Open in tool →

#6d0321 · #6d4f03

#4f036d · #6d1a03 · #216d03

Contrast

#03566d as textRatioAAAA largeAAAFix
Aaon white
8.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.56:1failfailfail
  • AA: use #0481a4 as the text (4.68:1)
  • AAA: use #05a5d1 as the text (7.31:1)
  • AA: or shift the background to #c2c2c2 (4.61:1)
  • AAA: or shift the background to #ededed (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03566d 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

#03566d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03566d
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 #03566d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03566d-a2b5be-df4e75-1f242d-e9f1ef?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