Color

#31797c

#31797c
hex#31797c
rgbrgb(49, 121, 124)
hslhsl(182, 43%, 34%)
oklchoklch(0.532 0.071 199)
Closest name: Green Sleeves (#39766c)Relative luminance 0.1578

Colors that go with #31797c

Charcoal, Crimson and Amber 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 →

#7c3431

#317c59 · #31547c

#7c3179 · #797c31

Split-complementary

Open in tool →

#7c3154 · #7c5931

#59317c · #7c3431 · #547c31

Contrast

#31797c as textRatioAAAA largeAAAFix
Aaon white
5.05:1passpassfail
  • AAA: use #276062 as the text (7.15:1)
Aaon black
4.16:1failpassfail
  • AA: use #348183 as the text (4.61:1)
  • AAA: use #43a4a8 as the text (7.11:1)
  • AA: or shift the background to #f2f2f2 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31797c as the background.

Brands using this color

Fonts for this mood

#31797c reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31797c
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 #31797c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31797c-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