Color

#378690

#378690
hex#378690
rgbrgb(55, 134, 144)
hslhsl(187, 45%, 39%)
oklchoklch(0.576 0.078 206.7)
Closest name: darkcyan (#008b8b)Relative luminance 0.1988

Tints & shades

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

Harmonies

Complementary

Open in tool →

#904137

#37906e · #375990

#903786 · #869037

Split-complementary

Open in tool →

#903759 · #906e37

#6e3790 · #904137 · #599037

Contrast

#378690 as textRatioAAAA largeAAAFix
Aaon white
4.22:1failpassfail
  • AA: use #347f89 as the text (4.62:1)
  • AAA: use #276068 as the text (7.1:1)
  • AA: or shift the background to #0f0f0f (4.54:1)
Aaon black
4.98:1passpassfail
  • AAA: use #43a5b1 as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #378690 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

#378690 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #378690
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #378690 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/378690-a2b8be-df4e83-1f262d-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