Color

#00296b

#00296b
hex#00296b
rgbrgb(0, 41, 107)
hslhsl(217, 100%, 21%)
oklchoklch(0.304 0.123 259.9)
Closest name: Black Sea Night (#052462)Relative luminance 0.0265

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6b4200

#005f6b · #0c006b

#6b0029 · #296b00

Split-complementary

Open in tool →

#6b0c00 · #5f6b00

#6b005f · #6b4200 · #006b0c

Contrast

#00296b as textRatioAAAA largeAAAFix
Aaon white
13.73:1passpasspassPasses AAA — no fix needed.
Aaon black
1.53:1failfailfail
  • AA: use #0f6bff as the text (4.57:1)
  • AAA: use #5294ff as the text (7.04:1)
  • AA: or shift the background to #949494 (4.53:1)
  • AAA: or shift the background to #bababa (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #00296b 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

#00296b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00296b
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 #00296b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00296b-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