Color

#00043d

#00043d
hex#00043d
rgbrgb(0, 4, 61)
hslhsl(236, 100%, 12%)
oklchoklch(0.172 0.106 264.2)
Closest name: Endless Galaxy (#000044)Relative luminance 0.0042

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3d3900

#00233d · #1b003d

#3d0004 · #043d00

Split-complementary

Open in tool →

#3d1b00 · #233d00

#3d0023 · #3d3900 · #003d1b

Contrast

#00043d as textRatioAAAA largeAAAFix
Aaon white
19.36:1passpasspassPasses AAA — no fix needed.
Aaon black
1.08:1failfailfail
  • AA: use #5762ff as the text (4.6:1)
  • AAA: use #858dff as the text (7.25:1)
  • AA: or shift the background to #7a7a7a (4.51:1)
  • AAA: or shift the background to #9c9c9c (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #00043d 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

#00043d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00043d
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 #00043d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00043d-9e9cc4-df8f4e-241f2d-e9eef1?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