Color

#003d5c

#003d5c
hex#003d5c
rgbrgb(0, 61, 92)
hslhsl(200, 100%, 18%)
oklchoklch(0.343 0.077 239.1)
Closest name: Maniac Mansion (#004058)Relative luminance 0.0411

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5c1f00

#005c4d · #000f5c

#5c003d · #3d5c00

Split-complementary

Open in tool →

#5c000f · #5c4d00

#4c005c · #5c1f00 · #0f5c00

Contrast

#003d5c as textRatioAAAA largeAAAFix
Aaon white
11.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #007ebd as the text (4.72:1)
  • AAA: use #00a0f0 as the text (7.29:1)
  • AA: or shift the background to #a3a3a3 (4.57:1)
  • AAA: or shift the background to #cccccc (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #003d5c 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

#003d5c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003d5c
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 #003d5c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003d5c-9cb2c4-df4e64-1f232d-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