Color

#00103d

#00103d
hex#00103d
rgbrgb(0, 16, 61)
hslhsl(224, 100%, 12%)
oklchoklch(0.197 0.09 261.8)
Closest name: Infinite Night (#071037)Relative luminance 0.0071

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d2d00

#002f3d · #0e003d

#3d0010 · #103d00

Split-complementary

Open in tool →

#3d0e00 · #2f3d00

#3d002f · #3d2d00 · #003d0e

Contrast

#00103d as textRatioAAAA largeAAAFix
Aaon white
18.4:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #3369ff as the text (4.61:1)
  • AAA: use #6b93ff as the text (7.24:1)
  • AA: or shift the background to #808080 (4.66:1)
  • AAA: or shift the background to #a1a1a1 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #00103d as the background.

Brands using this color

Fonts for this mood

#00103d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00103d
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 #00103d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00103d-9ca2c4-df724e-221f2d-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