Color

#31bcbf

#31bcbf
hex#31bcbf
rgbrgb(49, 188, 191)
hslhsl(181, 59%, 47%)
oklchoklch(0.726 0.113 197.2)
Closest name: Emerald Bliss (#4cbdac)Relative luminance 0.4038

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf3331

#31bf7a · #3175bf

#bf31bc · #bcbf31

Split-complementary

Open in tool →

#bf3175 · #bf7a31

#7a31bf · #bf3331 · #75bf31

Contrast

#31bcbf as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #218082 as the text (4.69:1)
  • AAA: use #196061 as the text (7.27:1)
  • AA: or shift the background to #3d3d3d (4.69:1)
  • AAA: or shift the background to #1f1f1f (7.12:1)
Aaon black
9.08:1passpasspassPasses 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 #31bcbf as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/31bcbf-a2babe-d45992-1f272d-e9f1ed?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