Color

#635dcb

#635dcb
hex#635dcb
rgbrgb(99, 93, 203)
hslhsl(243, 51%, 58%)
oklchoklch(0.542 0.165 281.8)
Closest name: slateblue (#6a5acd)Relative luminance 0.1479

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c5cb5d

#5d8ecb · #995dcb

#cb635d · #5dcb63

Split-complementary

Open in tool →

#cb995d · #8ecb5d

#cb5d8e · #c5cb5d · #5dcb99

Contrast

#635dcb as textRatioAAAA largeAAAFix
Aaon white
5.3:1passpassfail
  • AAA: use #4c46c3 as the text (7.07:1)
Aaon black
3.96:1failpassfail
  • AA: use #6e69ce as the text (4.57:1)
  • AAA: use #938fdb as the text (7.19:1)
  • AA: or shift the background to #ededed (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #635dcb 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

#635dcb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #635dcb
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 #635dcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/635dcb-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