Color

#31acbf

#31acbf
hex#31acbf
rgbrgb(49, 172, 191)
hslhsl(188, 59%, 47%)
oklchoklch(0.687 0.107 210.2)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3392

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf4431

#31bf8b · #3165bf

#bf31ac · #acbf31

Split-complementary

Open in tool →

#bf3165 · #bf8b31

#8b31bf · #bf4431 · #65bf31

Contrast

#31acbf as textRatioAAAA largeAAAFix
Aaon white
2.7:1failfailfail
  • AA: use #25808e as the text (4.61:1)
  • AAA: use #1b5f69 as the text (7.27:1)
  • AA: or shift the background to #333333 (4.68:1)
  • AAA: or shift the background to #0f0f0f (7.11:1)
Aaon black
7.78:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31acbf 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

#31acbf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31acbf
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 #31acbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31acbf-a2b7be-df4e81-1f252d-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