Color

#658dfb

#658dfb
hex#658dfb
rgbrgb(101, 141, 251)
hslhsl(224, 95%, 69%)
oklchoklch(0.667 0.169 266.8)
Closest name: cornflowerblue (#6495ed)Relative luminance 0.2878

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fbd365

#65d8fb · #8865fb

#fb658d · #8dfb65

Split-complementary

Open in tool →

#fb8865 · #d8fb65

#fb65d8 · #fbd365 · #65fb88

Contrast

#658dfb as textRatioAAAA largeAAAFix
Aaon white
3.11:1failpassfail
  • AA: use #3368fa as the text (4.67:1)
  • AAA: use #0643ea as the text (7:1)
  • AA: or shift the background to #2b2b2b (4.56:1)
Aaon black
6.76:1passpassfail
  • AAA: use #6a91fb as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #658dfb 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

#658dfb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #658dfb
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 #658dfb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/658dfb-9ca2c4-df724e-221f2d-e9eff1?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