Color

#001d5c

#001d5c
hex#001d5c
rgbrgb(0, 29, 92)
hslhsl(221, 100%, 18%)
oklchoklch(0.262 0.118 261.7)
Closest name: Black Sea Night (#052462)Relative luminance 0.0165

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5c3f00

#004b5c · #11005c

#5c001d · #1d5c00

Split-complementary

Open in tool →

#5c1100 · #4b5c00

#5c004b · #5c3f00 · #005c11

Contrast

#001d5c as textRatioAAAA largeAAAFix
Aaon white
15.79:1passpasspassPasses AAA — no fix needed.
Aaon black
1.33:1failfailfail
  • AA: use #2469ff as the text (4.54:1)
  • AAA: use #6193ff as the text (7.13:1)
  • AA: or shift the background to #8a8a8a (4.57:1)
  • AAA: or shift the background to #adadad (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #001d5c 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

#001d5c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #001d5c
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 #001d5c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/001d5c-9ca4c4-df6b4e-211f2d-e9eff1?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