Color

#00348f

#00348f
hex#00348f
rgbrgb(0, 52, 143)
hslhsl(218, 100%, 28%)
oklchoklch(0.363 0.159 261.2)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0444

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8f5a00

#007c8f · #13008f

#8f0034 · #348f00

Split-complementary

Open in tool →

#8f1300 · #7c8f00

#8f007c · #8f5a00 · #008f13

Contrast

#00348f as textRatioAAAA largeAAAFix
Aaon white
11.12:1passpasspassPasses AAA — no fix needed.
Aaon black
1.89:1failfailfail
  • AA: use #146aff as the text (4.54:1)
  • AAA: use #5794ff as the text (7.09:1)
  • AA: or shift the background to #a6a6a6 (4.57:1)
  • AAA: or shift the background to #cfcfcf (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #00348f as the background.

Brands using this color

Fonts for this mood

#00348f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00348f
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 #00348f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00348f-9ca6c4-df644e-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