Color
#4173fb
#4173fbrgb(65, 115, 251)hsl(224, 96%, 62%)oklch(0.599 0.21 265.2)Colors that go with #4173fb
Charcoal, Crimson and Copper lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #4173fb: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
triadicshippedCrimson completes a triad with #4173fb — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Copper #b87333
complementaryshippedCopper sits directly opposite #4173fb on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #4173fb in 9 real palettes, including Mastodon hosted on mastodon.social's brand system and Google's brand system, as the accent.
Blue #0000ff
shipped13 real palettes, including Penpot's brand system and Cargo's brand system put Blue beside #4173fb, as the supporting colour.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #4173fb: 11 real palettes, including Behance's brand system and Carrefour's brand system, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #4173fb: 5 real palettes, including Webflow's brand system and Mastodon hosted on mastodon.social's brand system, as the accent.
Deep Sky Blue #00bfff
shippedDesigners have shipped Deep Sky Blue with #4173fb: 9 real palettes, including Elastic's brand system and Patreon's brand system, as the supporting colour.
Real palettes that use #4173fb
Tints & shades
Harmonies
Contrast
| #4173fb as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.14:1 | fail | pass | fail | |
Aaon black | 5.07:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4173fb 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
#4173fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #4173fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4173fb-9ca2c4-df724e-221f2d-e9eff1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md