Color

#231e80

#231e80
hex#231e80
rgbrgb(35, 30, 128)
hslhsl(243, 62%, 31%)
oklchoklch(0.32 0.157 275.2)
Closest name: Deep Space Rodeo (#332277)Relative luminance 0.0284

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7b801e

#1e4a80 · #541e80

#80231e · #1e8023

Split-complementary

Open in tool →

#80541e · #4a801e

#801e4a · #7b801e · #1e8054

Contrast

#231e80 as textRatioAAAA largeAAAFix
Aaon white
13.39:1passpasspassPasses AAA — no fix needed.
Aaon black
1.57:1failfailfail
  • AA: use #6c66db as the text (4.56:1)
  • AAA: use #948fe5 as the text (7.32:1)
  • AA: or shift the background to #969696 (4.53:1)
  • AAA: or shift the background to #bdbdbd (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #231e80 as the background.

Brands using this color

Fonts for this mood

#231e80 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #231e80
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 #231e80 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/231e80-a39cc4-dfa04e-261f2d-e9edf1?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