Color

#33455c

#33455c
hex#33455c
rgbrgb(51, 69, 92)
hslhsl(214, 29%, 28%)
oklchoklch(0.385 0.046 254.9)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0573

Colors that go with #33455c

Sea Green, 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 →

#5c4a33

#33595c · #35335c

#5c3345 · #455c33

Split-complementary

Open in tool →

#5c3533 · #595c33

#5c3359 · #5c4a33 · #335c35

Contrast

#33455c as textRatioAAAA largeAAAFix
Aaon white
9.78:1passpasspassPasses AAA — no fix needed.
Aaon black
2.15:1failfailfail
  • AA: use #5978a1 as the text (4.63:1)
  • AAA: use #7f98b8 as the text (7.09:1)
  • AA: or shift the background to #b0b0b0 (4.51:1)
  • AAA: or shift the background to #dbdbdb (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 #33455c as the background.

Brands using this color

Fonts for this mood

#33455c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #33455c
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 #33455c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/33455c-9ca9c4-df5a4e-1f1f2d-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