Color

#31905e

#31905e
hex#31905e
rgbrgb(49, 144, 94)
hslhsl(148, 49%, 38%)
oklchoklch(0.584 0.118 156.5)
Closest name: seagreen (#2e8b57)Relative luminance 0.2141

Colors that go with #31905e

Charcoal, Crimson and Medium Violet Red 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 →

#903164

#359031 · #31908d

#5e3190 · #905e31

Split-complementary

Open in tool →

#8d3190 · #903135

#313590 · #903164 · #908d31

Contrast

#31905e as textRatioAAAA largeAAAFix
Aaon white
3.98:1failpassfail
  • AA: use #2e8556 as the text (4.56:1)
  • AAA: use #226340 as the text (7.18:1)
  • AA: or shift the background to #171717 (4.51:1)
Aaon black
5.28:1passpassfail
  • AAA: use #3bab6f as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31905e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #31905e
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 #31905e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31905e-a2beb2-d259d4-1f2d2c-eaf1e9?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