Color

#2d306c

#2d306c
hex#2d306c
rgbrgb(45, 48, 108)
hslhsl(237, 41%, 30%)
oklchoklch(0.342 0.102 277.4)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0375

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6c692d

#2d506c · #492d6c

#6c2d30 · #306c2d

Split-complementary

Open in tool →

#6c492d · #506c2d

#6c2d50 · #6c692d · #2d6c49

Contrast

#2d306c as textRatioAAAA largeAAAFix
Aaon white
11.99:1passpasspassPasses AAA — no fix needed.
Aaon black
1.75:1failfailfail
  • AA: use #6c70c1 as the text (4.73:1)
  • AAA: use #9093d0 as the text (7.27:1)
  • AA: or shift the background to #a1a1a1 (4.64:1)
  • AAA: or shift the background to #c7c7c7 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2d306c 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

#2d306c reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2d306c
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 #2d306c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2d306c-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