Color

#31233e

#31233e
hex#31233e
rgbrgb(49, 35, 62)
hslhsl(271, 28%, 19%)
oklchoklch(0.286 0.051 307.3)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.022

Tints & shades

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

Harmonies

Complementary

Open in tool →

#303e23

#23233e · #3e233e

#3e3123 · #233e31

Split-complementary

Open in tool →

#3e3e23 · #233e23

#3e2323 · #303e23 · #233e3e

Contrast

#31233e as textRatioAAAA largeAAAFix
Aaon white
14.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.44:1failfailfail
  • AA: use #8866a9 as the text (4.52:1)
  • AAA: use #a78dbf as the text (7.21:1)
  • AA: or shift the background to #8f8f8f (4.51:1)
  • AAA: or shift the background to #b5b5b5 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #31233e as the background.

Brands using this color

Fonts for this mood

#31233e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #31233e
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 #31233e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/31233e-b59cc4-c7cb62-2c1f2d-eae9f1?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