Color

#231ce3

#231ce3
hex#231ce3
rgbrgb(35, 28, 227)
hslhsl(242, 78%, 50%)
oklchoklch(0.436 0.271 268.4)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0673

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dce31c

#1c79e3 · #861ce3

#e3231c · #1ce323

Split-complementary

Open in tool →

#e3861c · #79e31c

#e31c79 · #dce31c · #1ce386

Contrast

#231ce3 as textRatioAAAA largeAAAFix
Aaon white
8.95:1passpasspassPasses AAA — no fix needed.
Aaon black
2.35:1failfailfail
  • AA: use #6965ec as the text (4.67:1)
  • AAA: use #918ef1 as the text (7.34:1)
  • AA: or shift the background to #b8b8b8 (4.51:1)
  • AAA: or shift the background to #e6e6e6 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #231ce3 as the background.

Brands using this color

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

Fonts for this mood

#231ce3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #231ce3
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 #231ce3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/231ce3-a29cc4-df9e4e-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