Color

#373456

#373456
hex#373456
rgbrgb(55, 52, 86)
hslhsl(245, 25%, 27%)
oklchoklch(0.344 0.059 286.9)
Closest name: Call It a Night (#42364c)Relative luminance 0.0394

Colors that go with #373456

Dark Olive Green, Sea Green and Steel 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#535634

#344256 · #483456

#563734 · #345637

Split-complementary

Open in tool →

#564834 · #425634

#563442 · #535634 · #345648

Contrast

#373456 as textRatioAAAA largeAAAFix
Aaon white
11.74:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #7470a9 as the text (4.63:1)
  • AAA: use #9693be as the text (7.21:1)
  • AA: or shift the background to #a1a1a1 (4.55:1)
  • AAA: or shift the background to #c9c9c9 (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 #373456 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

#373456 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #373456
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 #373456 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/373456-a49cc4-dfa54e-261f2d-e9ecf1?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