Color
#421c5f
#421c5frgb(66, 28, 95)hsl(274, 54%, 24%)oklch(0.318 0.116 307)Colors that go with #421c5f
Charcoal, Blue and Cadet Blue 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 #421c5f: softer than #000 and cool enough to feel like part of the same palette.
Blue #0000ff
shipped6 real palettes, including Sketch's brand system and Monzo's brand system put Blue beside #421c5f, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #421c5f: 4 real palettes, including SoFi's brand system and Open House, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #421c5f in 5 real palettes, including Marvel's brand system and Casper Sleep's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #421c5f: 14 real palettes, including Discover's brand system and Hinge's brand system, as the supporting colour.
Orange Red #ff4500
shippedOrange Red is paired with #421c5f in 4 real palettes, including Audi's brand system and Tumblr's brand system, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #421c5f: 5 real palettes, including Frost & Ember and Macaron, as the supporting colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #421c5f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #421c5f
Tints & shades
Harmonies
Contrast
| #421c5f as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.44:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.56:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #421c5f 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
#421c5f reads as cool, dark, luxury. 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 #421c5f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/421c5f-b79cc4-c2cb62-2d1f2d-eae9f1?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