Color

#33445c

#33445c
hex#33445c
rgbrgb(51, 68, 92)
hslhsl(215, 29%, 28%)
oklchoklch(0.383 0.047 257)
Closest name: Black Turmeric (#2c4364)Relative luminance 0.0561

Colors that go with #33445c

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 →

#5c4b33

#33595c · #36335c

#5c3344 · #445c33

Split-complementary

Open in tool →

#5c3633 · #595c33

#5c3359 · #5c4b33 · #335c36

Contrast

#33445c as textRatioAAAA largeAAAFix
Aaon white
9.9:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #5977a1 as the text (4.58:1)
  • AAA: use #7f97b8 as the text (7.02:1)
  • AA: or shift the background to #b0b0b0 (4.56:1)
  • AAA: or shift the background to #d9d9d9 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #33445c as the background.

Brands using this color

Fonts for this mood

#33445c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #33445c
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 #33445c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/33445c-9ca8c4-df5d4e-201f2d-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