Color

#33878a

#33878a
hex#33878a
rgbrgb(51, 135, 138)
hslhsl(182, 46%, 37%)
oklchoklch(0.574 0.08 198.5)
Closest name: darkcyan (#008b8b)Relative luminance 0.1987

Colors that go with #33878a

Charcoal, Copper and Crimson 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 →

#8a3633

#338a61 · #335b8a

#8a3387 · #878a33

Split-complementary

Open in tool →

#8a335b · #8a6133

#61338a · #8a3633 · #5b8a33

Contrast

#33878a as textRatioAAAA largeAAAFix
Aaon white
4.22:1failpassfail
  • AA: use #308082 as the text (4.63:1)
  • AAA: use #245f61 as the text (7.28:1)
  • AA: or shift the background to #0f0f0f (4.54:1)
Aaon black
4.97:1passpassfail
  • AAA: use #3ea4a8 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #33878a 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

#33878a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #33878a
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 #33878a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/33878a-a2babe-d45990-1f272d-e9f1ee?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