Color

#003994

#003994
hex#003994
rgbrgb(0, 57, 148)
hslhsl(217, 100%, 29%)
oklchoklch(0.378 0.159 260.6)
Closest name: Depths of Night (#2c319b)Relative luminance 0.0506

Tints & shades

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

Harmonies

Complementary

Open in tool →

#945b00

#008394 · #110094

#940039 · #399400

Split-complementary

Open in tool →

#941100 · #839400

#940083 · #945b00 · #009411

Contrast

#003994 as textRatioAAAA largeAAAFix
Aaon white
10.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.01:1failfailfail
  • AA: use #0f6bff as the text (4.57:1)
  • AAA: use #5294ff as the text (7.04:1)
  • AA: or shift the background to #ababab (4.54:1)
  • AAA: or shift the background to #d4d4d4 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #003994 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#003994 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003994
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 #003994 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003994-9ca7c4-df624e-201f2d-e9f0f1?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