Color

#03063f

#03063f
hex#03063f
rgbrgb(3, 6, 63)
hslhsl(237, 91%, 13%)
oklchoklch(0.182 0.104 267.3)
Closest name: Endless Galaxy (#000044)Relative luminance 0.0051

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f3c03

#03243f · #1e033f

#3f0306 · #063f03

Split-complementary

Open in tool →

#3f1e03 · #243f03

#3f0324 · #3f3c03 · #033f1e

Contrast

#03063f as textRatioAAAA largeAAAFix
Aaon white
19.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.1:1failfailfail
  • AA: use #5e66f7 as the text (4.72:1)
  • AAA: use #858bf9 as the text (7.06:1)
  • AA: or shift the background to #7d7d7d (4.63:1)
  • AAA: or shift the background to #9e9e9e (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #03063f 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

#03063f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #03063f
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 #03063f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03063f-9f9cc4-df924e-251f2d-e9edf1?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