Color

#304654

#304654
hex#304654
rgbrgb(48, 70, 84)
hslhsl(203, 27%, 26%)
oklchoklch(0.382 0.036 236.9)
Closest name: Charcoal (#36454f)Relative luminance 0.0565

Colors that go with #304654

Steel Blue, Teal and Sienna 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#543e30

#305450 · #303554

#543046 · #465430

Split-complementary

Open in tool →

#543035 · #545030

#503054 · #543e30 · #355430

Contrast

#304654 as textRatioAAAA largeAAAFix
Aaon white
9.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.13:1failfailfail
  • AA: use #547a92 as the text (4.58:1)
  • AAA: use #779bb1 as the text (7.11:1)
  • AA: or shift the background to #b0b0b0 (4.55:1)
  • AAA: or shift the background to #dbdbdb (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #304654 as the background.

Brands using this color

Fonts for this mood

#304654 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #304654
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 #304654 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/304654-9cb0c4-df4e5d-1f222d-e9f1f0?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