Color

#00358a

#00358a
hex#00358a
rgbrgb(0, 53, 138)
hslhsl(217, 100%, 27%)
oklchoklch(0.36 0.151 260.5)
Closest name: Deep Space Royal (#223382)Relative luminance 0.0438

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a5500

#007a8a · #10008a

#8a0035 · #358a00

Split-complementary

Open in tool →

#8a1000 · #7a8a00

#8a007a · #8a5500 · #008a10

Contrast

#00358a as textRatioAAAA largeAAAFix
Aaon white
11.19:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #0f6bff as the text (4.57:1)
  • AAA: use #5294ff as the text (7.04:1)
  • AA: or shift the background to #a6a6a6 (4.6:1)
  • AAA: or shift the background to #cfcfcf (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #00358a 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

#00358a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00358a
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 #00358a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00358a-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