Color

#12877d

#12877d
hex#12877d
rgbrgb(18, 135, 125)
hslhsl(175, 76%, 30%)
oklchoklch(0.562 0.095 185.5)
Closest name: Go Go Green (#008a7d)Relative luminance 0.1894

Tints & shades

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

Harmonies

Complementary

Open in tool →

#87121c

#128743 · #125687

#7d1287 · #877d12

Split-complementary

Open in tool →

#871256 · #874312

#431287 · #87121c · #568712

Contrast

#12877d as textRatioAAAA largeAAAFix
Aaon white
4.39:1failpassfail
  • AA: use #128279 as the text (4.67:1)
  • AAA: use #0d635c as the text (7.1:1)
  • AA: or shift the background to #0a0a0a (4.51:1)
Aaon black
4.79:1passpassfail
  • AAA: use #17ab9e as the text (7.36:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #12877d as the background.

Brands using this color

Fonts for this mood

#12877d reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #12877d
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 #12877d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12877d-a2bdbe-d4599f-1f282d-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