Color

#306451

#306451
hex#306451
rgbrgb(48, 100, 81)
hslhsl(158, 35%, 29%)
oklchoklch(0.461 0.065 167.4)
Closest name: Ethereal Woods (#3e5e4e)Relative luminance 0.1034

Colors that go with #306451

Charcoal, Medium Violet Red and Cadet Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #306451

Tints & shades

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

Harmonies

Complementary

Open in tool →

#643043

#306437 · #305d64

#513064 · #645130

Split-complementary

Open in tool →

#64305d · #643730

#373064 · #643043 · #5d6430

Contrast

#306451 as textRatioAAAA largeAAAFix
Aaon white
6.85:1passpassfail
  • AAA: use #2e604e as the text (7.24:1)
Aaon black
3.07:1failpassfail
  • AA: use #3f836a as the text (4.67:1)
  • AAA: use #50a586 as the text (7.07:1)
  • AA: or shift the background to #d4d4d4 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #306451 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

#306451 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #306451
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #306451 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/306451-a2beb7-d459c2-1f2c2d-e9f1eb?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