Color

#003c8a

#003c8a
hex#003c8a
rgbrgb(0, 60, 138)
hslhsl(214, 100%, 27%)
oklchoklch(0.375 0.142 258.4)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0507

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a4e00

#00818a · #09008a

#8a003c · #3c8a00

Split-complementary

Open in tool →

#8a0900 · #818a00

#8a0081 · #8a4e00 · #008a09

Contrast

#003c8a as textRatioAAAA largeAAAFix
Aaon white
10.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.01:1failfailfail
  • AA: use #006cfa as the text (4.53:1)
  • AAA: use #4797ff as the text (7.14:1)
  • 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 #003c8a 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

#003c8a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003c8a
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 #003c8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003c8a-9ca9c4-df5a4e-1f1f2d-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