Color

#37888b

#37888b
hex#37888b
rgbrgb(55, 136, 139)
hslhsl(182, 43%, 38%)
oklchoklch(0.579 0.078 198.6)
Closest name: darkcyan (#008b8b)Relative luminance 0.2028

Colors that go with #37888b

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 →

#8b3a37

#378b64 · #375e8b

#8b3788 · #888b37

Split-complementary

Open in tool →

#8b375e · #8b6437

#64378b · #8b3a37 · #5e8b37

Contrast

#37888b as textRatioAAAA largeAAAFix
Aaon white
4.15:1failpassfail
  • AA: use #348183 as the text (4.55:1)
  • AAA: use #276062 as the text (7.15:1)
  • AA: or shift the background to #121212 (4.51:1)
Aaon black
5.06:1passpassfail
  • AAA: use #43a4a8 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37888b 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

#37888b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37888b
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 #37888b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37888b-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